TY  - JOUR
AU  - Mitić, Vojislav V.
AU  - Lazović, Goran
AU  - Lu, Chun-An
AU  - Paunović, Vesna
AU  - Radović, Ivana
AU  - Stajčić, Aleksandar
AU  - Vlahović, Branislav
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8957
AB  - The BaTiO3 ceramics applications based on electronic properties have very high gradient scientific and industrial-technological interests. Our scientific research has been based on nano BaTiO3 modified with Yttrium based organometallic salt (MOD-Y). The samples have been consolidated at a sintering temperature of 1350 °C. Within the study, the new frontiers for different electronic properties between the layers of BaTiO3 grains have been introduced. The research target was grain boundary investigations and the influence on dielectric properties. After scanning electron microscopy and dielectric measurements, it has been established that modified BaTiO3 samples with larger grains showed a better compact state that led to a higher dielectric constant value. DC bias stability was also investigated and showed a connection between the grain size and capacitance stability. Analyses of functions that could approximate experimental curves were successfully employed. Practical application of fractal corrections was performed, based on surface (αs) and pore size (αp) corrections, which resulted in obtainment of the relation between the capacitance and Curie temperature. Successful introduction of fractal corrections for capacitance-Curie temperature dependence for a set of experimental data is an important step towards further miniaturization of intergranular capacitors. © 2020 by the authors.
PB  - Basel : MDPI
T2  - Applied Sciences (Switzerland)
T1  - The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers
SP  - 3485
VL  - 10
IS  - 10
DO  - 10.3390/app10103485
UR  - https://hdl.handle.net/21.15107/rcub_dais_8957
ER  - 

@article{
author = "Mitić, Vojislav V. and Lazović, Goran and Lu, Chun-An and Paunović, Vesna and Radović, Ivana and Stajčić, Aleksandar and Vlahović, Branislav",
year = "2020",
abstract = "The BaTiO3 ceramics applications based on electronic properties have very high gradient scientific and industrial-technological interests. Our scientific research has been based on nano BaTiO3 modified with Yttrium based organometallic salt (MOD-Y). The samples have been consolidated at a sintering temperature of 1350 °C. Within the study, the new frontiers for different electronic properties between the layers of BaTiO3 grains have been introduced. The research target was grain boundary investigations and the influence on dielectric properties. After scanning electron microscopy and dielectric measurements, it has been established that modified BaTiO3 samples with larger grains showed a better compact state that led to a higher dielectric constant value. DC bias stability was also investigated and showed a connection between the grain size and capacitance stability. Analyses of functions that could approximate experimental curves were successfully employed. Practical application of fractal corrections was performed, based on surface (αs) and pore size (αp) corrections, which resulted in obtainment of the relation between the capacitance and Curie temperature. Successful introduction of fractal corrections for capacitance-Curie temperature dependence for a set of experimental data is an important step towards further miniaturization of intergranular capacitors. © 2020 by the authors.",
publisher = "Basel : MDPI",
journal = "Applied Sciences (Switzerland)",
title = "The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers",
pages = "3485",
volume = "10",
number = "10",
doi = "10.3390/app10103485",
url = "https://hdl.handle.net/21.15107/rcub_dais_8957"
}

Mitić, V. V., Lazović, G., Lu, C., Paunović, V., Radović, I., Stajčić, A.,& Vlahović, B.. (2020). The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers. in Applied Sciences (Switzerland)
Basel : MDPI., 10(10), 3485.
https://doi.org/10.3390/app10103485
https://hdl.handle.net/21.15107/rcub_dais_8957

Mitić VV, Lazović G, Lu C, Paunović V, Radović I, Stajčić A, Vlahović B. The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers. in Applied Sciences (Switzerland). 2020;10(10):3485.
doi:10.3390/app10103485
https://hdl.handle.net/21.15107/rcub_dais_8957 .

Mitić, Vojislav V., Lazović, Goran, Lu, Chun-An, Paunović, Vesna, Radović, Ivana, Stajčić, Aleksandar, Vlahović, Branislav, "The Nano-Scale Modified BaTiO3 Morphology Influence on Electronic Properties and Ceramics Fractal Nature Frontiers" in Applied Sciences (Switzerland), 10, no. 10 (2020):3485,
https://doi.org/10.3390/app10103485 .,
https://hdl.handle.net/21.15107/rcub_dais_8957 .

TY  - JOUR
AU  - Đurić, Zoran G.
AU  - Jokić, Ivana
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8727
AB  - Perovskite solar cells (PSCs) have attracted significant attention in recent years due to the rapid increase in device efficiency (reaching over 25% in 2019), ease of fabrication, and the potential to produce low-cost photovoltaic modules. In this paper we have determined the ideal power conversion efficiency and quantum efficiency of PSCs with the p–i–n device structure, where p is the hole transport layer, i is the perovskite absorber layer, and n is the electron transport layer. The absorption of incident light occurs in a thin perovskite layer, the thickness of which is comparable to the wavelength of absorbed light. We take into account interference effects when the PSC structure is represented by a Fabry–Perot resonator. The optical flux within the absorbing layer is calculated as a function of the spatial coordinate (in the direction of the layer thickness), for a certain wavelength, at the normal incident light. The power quantum efficiency is calculated assuming that the incident light source is a blackbody at the temperature of the Sun, as well as for the AM1.5g standard solar spectrum. The results obtained by using the derived expressions that take into account the interference effects are compared with those obtained by neglecting these effects.
PB  - Springer Science and Business Media LLC
T2  - Optical and Quantum Electronics
T1  - Ideal efficiency of resonant cavity-enhanced perovskite solar cells
VL  - 52
IS  - 5
DO  - 10.1007/s11082-020-02342-4
UR  - https://hdl.handle.net/21.15107/rcub_dais_8727
ER  - 

@article{
author = "Đurić, Zoran G. and Jokić, Ivana",
year = "2020",
abstract = "Perovskite solar cells (PSCs) have attracted significant attention in recent years due to the rapid increase in device efficiency (reaching over 25% in 2019), ease of fabrication, and the potential to produce low-cost photovoltaic modules. In this paper we have determined the ideal power conversion efficiency and quantum efficiency of PSCs with the p–i–n device structure, where p is the hole transport layer, i is the perovskite absorber layer, and n is the electron transport layer. The absorption of incident light occurs in a thin perovskite layer, the thickness of which is comparable to the wavelength of absorbed light. We take into account interference effects when the PSC structure is represented by a Fabry–Perot resonator. The optical flux within the absorbing layer is calculated as a function of the spatial coordinate (in the direction of the layer thickness), for a certain wavelength, at the normal incident light. The power quantum efficiency is calculated assuming that the incident light source is a blackbody at the temperature of the Sun, as well as for the AM1.5g standard solar spectrum. The results obtained by using the derived expressions that take into account the interference effects are compared with those obtained by neglecting these effects.",
publisher = "Springer Science and Business Media LLC",
journal = "Optical and Quantum Electronics",
title = "Ideal efficiency of resonant cavity-enhanced perovskite solar cells",
volume = "52",
number = "5",
doi = "10.1007/s11082-020-02342-4",
url = "https://hdl.handle.net/21.15107/rcub_dais_8727"
}

Đurić, Z. G.,& Jokić, I.. (2020). Ideal efficiency of resonant cavity-enhanced perovskite solar cells. in Optical and Quantum Electronics
Springer Science and Business Media LLC., 52(5).
https://doi.org/10.1007/s11082-020-02342-4
https://hdl.handle.net/21.15107/rcub_dais_8727

Đurić ZG, Jokić I. Ideal efficiency of resonant cavity-enhanced perovskite solar cells. in Optical and Quantum Electronics. 2020;52(5).
doi:10.1007/s11082-020-02342-4
https://hdl.handle.net/21.15107/rcub_dais_8727 .

Đurić, Zoran G., Jokić, Ivana, "Ideal efficiency of resonant cavity-enhanced perovskite solar cells" in Optical and Quantum Electronics, 52, no. 5 (2020),
https://doi.org/10.1007/s11082-020-02342-4 .,
https://hdl.handle.net/21.15107/rcub_dais_8727 .

TY  - DATA
AU  - Janićijević, Željko
AU  - Vujčić, Ivica
AU  - Veljović, Đorđe
AU  - Vujisić, Miloš
AU  - Radovanović, Filip
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/6944
AB  - Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGA-PAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions.
T2  - Radiation Physics and Chemistry
T1  - Supplementary data for the article: Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M., Radovanović, F., 2020. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. Radiation Physics and Chemistry 166, 108466. https://doi.org/10.1016/j.radphyschem.2019.108466
VL  - 166
UR  - https://hdl.handle.net/21.15107/rcub_dais_6944
ER  - 

@misc{
author = "Janićijević, Željko and Vujčić, Ivica and Veljović, Đorđe and Vujisić, Miloš and Radovanović, Filip",
year = "2020",
abstract = "Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGA-PAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions.",
journal = "Radiation Physics and Chemistry",
title = "Supplementary data for the article: Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M., Radovanović, F., 2020. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. Radiation Physics and Chemistry 166, 108466. https://doi.org/10.1016/j.radphyschem.2019.108466",
volume = "166",
url = "https://hdl.handle.net/21.15107/rcub_dais_6944"
}

Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M.,& Radovanović, F.. (2020). Supplementary data for the article: Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M., Radovanović, F., 2020. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. Radiation Physics and Chemistry 166, 108466. https://doi.org/10.1016/j.radphyschem.2019.108466. in Radiation Physics and Chemistry, 166.
https://hdl.handle.net/21.15107/rcub_dais_6944

Janićijević Ž, Vujčić I, Veljović Đ, Vujisić M, Radovanović F. Supplementary data for the article: Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M., Radovanović, F., 2020. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. Radiation Physics and Chemistry 166, 108466. https://doi.org/10.1016/j.radphyschem.2019.108466. in Radiation Physics and Chemistry. 2020;166.
https://hdl.handle.net/21.15107/rcub_dais_6944 .

Janićijević, Željko, Vujčić, Ivica, Veljović, Đorđe, Vujisić, Miloš, Radovanović, Filip, "Supplementary data for the article: Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M., Radovanović, F., 2020. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. Radiation Physics and Chemistry 166, 108466. https://doi.org/10.1016/j.radphyschem.2019.108466" in Radiation Physics and Chemistry, 166 (2020),
https://hdl.handle.net/21.15107/rcub_dais_6944 .

TY  - JOUR
AU  - Janićijević, Željko
AU  - Vujčić, Ivica
AU  - Veljović, Đorđe
AU  - Vujisić, Miloš
AU  - Radovanović, Filip
PY  - 2020
UR  - http://www.sciencedirect.com/science/article/pii/S0969806X19301380
UR  - https://dais.sanu.ac.rs/123456789/6943
AB  - Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGA-PAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions.
PB  - Elsevier
T2  - Radiation Physics and Chemistry
T1  - Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties
SP  - 108466
VL  - 166
DO  - 10.1016/j.radphyschem.2019.108466
UR  - https://hdl.handle.net/21.15107/rcub_dais_6943
ER  - 

@article{
author = "Janićijević, Željko and Vujčić, Ivica and Veljović, Đorđe and Vujisić, Miloš and Radovanović, Filip",
year = "2020",
abstract = "Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGA-PAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions.",
publisher = "Elsevier",
journal = "Radiation Physics and Chemistry",
title = "Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties",
pages = "108466",
volume = "166",
doi = "10.1016/j.radphyschem.2019.108466",
url = "https://hdl.handle.net/21.15107/rcub_dais_6943"
}

Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M.,& Radovanović, F.. (2020). Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. in Radiation Physics and Chemistry
Elsevier., 166, 108466.
https://doi.org/10.1016/j.radphyschem.2019.108466
https://hdl.handle.net/21.15107/rcub_dais_6943

Janićijević Ž, Vujčić I, Veljović Đ, Vujisić M, Radovanović F. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. in Radiation Physics and Chemistry. 2020;166:108466.
doi:10.1016/j.radphyschem.2019.108466
https://hdl.handle.net/21.15107/rcub_dais_6943 .

Janićijević, Željko, Vujčić, Ivica, Veljović, Đorđe, Vujisić, Miloš, Radovanović, Filip, "Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties" in Radiation Physics and Chemistry, 166 (2020):108466,
https://doi.org/10.1016/j.radphyschem.2019.108466 .,
https://hdl.handle.net/21.15107/rcub_dais_6943 .

TY  - JOUR
AU  - Đurić, Zoran G.
AU  - Jokić, Ivana
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/8975
AB  - Perovskite solar cells (PSCs) have attracted significant attention in recent years due to the rapid increase in device efficiency (reaching over 25% in 2019), ease of fabrication, and the potential to produce low-cost photovoltaic modules. In this paper we have determined the ideal power conversion efficiency and quantum efficiency of PSCs with the p–i–n device structure, where p is the hole transport layer, i is the perovskite absorber layer, and n is the electron transport layer. The absorption of incident light occurs in a thin perovskite layer, the thickness of which is comparable to the wavelength of absorbed light. We take into account interference effects when the PSC structure is represented by a Fabry–Perot resonator. The optical flux within the absorbing layer is calculated as a function of the spatial coordinate (in the direction of the layer thickness), for a certain wavelength, at the normal incident light. The power quantum efficiency is calculated assuming that the incident light source is a blackbody at the temperature of the Sun, as well as for the AM1.5g standard solar spectrum. The results obtained by using the derived expressions that take into account the interference effects are compared with those obtained by neglecting these effects.
PB  - Springer Science and Business Media LLC
T2  - Optical and Quantum Electronics
T1  - Ideal efficiency of resonant cavity-enhanced perovskite solar cells
VL  - 52
IS  - 5
DO  - 10.1007/s11082-020-02342-4
UR  - https://hdl.handle.net/21.15107/rcub_dais_8975
ER  - 

@article{
author = "Đurić, Zoran G. and Jokić, Ivana",
year = "2020",
abstract = "Perovskite solar cells (PSCs) have attracted significant attention in recent years due to the rapid increase in device efficiency (reaching over 25% in 2019), ease of fabrication, and the potential to produce low-cost photovoltaic modules. In this paper we have determined the ideal power conversion efficiency and quantum efficiency of PSCs with the p–i–n device structure, where p is the hole transport layer, i is the perovskite absorber layer, and n is the electron transport layer. The absorption of incident light occurs in a thin perovskite layer, the thickness of which is comparable to the wavelength of absorbed light. We take into account interference effects when the PSC structure is represented by a Fabry–Perot resonator. The optical flux within the absorbing layer is calculated as a function of the spatial coordinate (in the direction of the layer thickness), for a certain wavelength, at the normal incident light. The power quantum efficiency is calculated assuming that the incident light source is a blackbody at the temperature of the Sun, as well as for the AM1.5g standard solar spectrum. The results obtained by using the derived expressions that take into account the interference effects are compared with those obtained by neglecting these effects.",
publisher = "Springer Science and Business Media LLC",
journal = "Optical and Quantum Electronics",
title = "Ideal efficiency of resonant cavity-enhanced perovskite solar cells",
volume = "52",
number = "5",
doi = "10.1007/s11082-020-02342-4",
url = "https://hdl.handle.net/21.15107/rcub_dais_8975"
}

Đurić, Z. G.,& Jokić, I.. (2020). Ideal efficiency of resonant cavity-enhanced perovskite solar cells. in Optical and Quantum Electronics
Springer Science and Business Media LLC., 52(5).
https://doi.org/10.1007/s11082-020-02342-4
https://hdl.handle.net/21.15107/rcub_dais_8975

Đurić ZG, Jokić I. Ideal efficiency of resonant cavity-enhanced perovskite solar cells. in Optical and Quantum Electronics. 2020;52(5).
doi:10.1007/s11082-020-02342-4
https://hdl.handle.net/21.15107/rcub_dais_8975 .

Đurić, Zoran G., Jokić, Ivana, "Ideal efficiency of resonant cavity-enhanced perovskite solar cells" in Optical and Quantum Electronics, 52, no. 5 (2020),
https://doi.org/10.1007/s11082-020-02342-4 .,
https://hdl.handle.net/21.15107/rcub_dais_8975 .

TY  - CONF
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
AU  - Krstajić, Predrag
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6918
AB  - Real-time in situ operation of bio/chemical sensors assumes detection of chemical substances or biological specimens in samples of complex composition. Since sensor selectivity cannot be ideal, adsorption of particles other than target particles inevitably occur on the sensing surface. That affects the sensor response and its intrinsic fluctuations which are caused by stochastic fluctuations of the numbers of adsorbed particles of all the adsorbing substances. In microfluidic sensors, such response fluctuations are a result of coupled adsorption, desorption and mass transfer (convection and diffusion) processes of analyte particles. Analysis of these fluctuations is important because they constitute the adsorption-desorption noise, which limits the sensing performance. In this work we perform the analysis of fluctuations by using a stochastic model of sensor response after the steady state is reached, in the case of two-analyte adsorption, considering mass transfer processes. The results enable estimation of the ultimate sensing performance of adsorption-based microfluidic bio/chemical sensors of different sensing areas, operating in bianalyte mixture environments.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures
SP  - 161
EP  - 164
DO  - 10.1109/MIEL.2019.8889579
UR  - https://hdl.handle.net/21.15107/rcub_dais_6918
ER  - 

@conference{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš and Krstajić, Predrag",
year = "2019",
abstract = "Real-time in situ operation of bio/chemical sensors assumes detection of chemical substances or biological specimens in samples of complex composition. Since sensor selectivity cannot be ideal, adsorption of particles other than target particles inevitably occur on the sensing surface. That affects the sensor response and its intrinsic fluctuations which are caused by stochastic fluctuations of the numbers of adsorbed particles of all the adsorbing substances. In microfluidic sensors, such response fluctuations are a result of coupled adsorption, desorption and mass transfer (convection and diffusion) processes of analyte particles. Analysis of these fluctuations is important because they constitute the adsorption-desorption noise, which limits the sensing performance. In this work we perform the analysis of fluctuations by using a stochastic model of sensor response after the steady state is reached, in the case of two-analyte adsorption, considering mass transfer processes. The results enable estimation of the ultimate sensing performance of adsorption-based microfluidic bio/chemical sensors of different sensing areas, operating in bianalyte mixture environments.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures",
pages = "161-164",
doi = "10.1109/MIEL.2019.8889579",
url = "https://hdl.handle.net/21.15107/rcub_dais_6918"
}

Jokić, I., Đurić, Z. G., Radulović, K., Frantlović, M.,& Krstajić, P.. (2019). Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 161-164.
https://doi.org/10.1109/MIEL.2019.8889579
https://hdl.handle.net/21.15107/rcub_dais_6918

Jokić I, Đurić ZG, Radulović K, Frantlović M, Krstajić P. Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:161-164.
doi:10.1109/MIEL.2019.8889579
https://hdl.handle.net/21.15107/rcub_dais_6918 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, Krstajić, Predrag, "Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):161-164,
https://doi.org/10.1109/MIEL.2019.8889579 .,
https://hdl.handle.net/21.15107/rcub_dais_6918 .

TY  - CONF
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
AU  - Krstajić, Predrag
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6909
AB  - Real-time in situ operation of bio/chemical sensors assumes detection of chemical substances or biological specimens in samples of complex composition. Since sensor selectivity cannot be ideal, adsorption of particles other than target particles inevitably occur on the sensing surface. That affects the sensor response and its intrinsic fluctuations which are caused by stochastic fluctuations of the numbers of adsorbed particles of all the adsorbing substances. In microfluidic sensors, such response fluctuations are a result of coupled adsorption, desorption and mass transfer (convection and diffusion) processes of analyte particles. Analysis of these fluctuations is important because they constitute the adsorption-desorption noise, which limits the sensing performance. In this work we perform the analysis of fluctuations by using a stochastic model of sensor response after the steady state is reached, in the case of two-analyte adsorption, considering mass transfer processes. The results enable estimation of the ultimate sensing performance of adsorption-based microfluidic bio/chemical sensors of different sensing areas, operating in bianalyte mixture environments.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures
SP  - 161
EP  - 164
DO  - 10.1109/MIEL.2019.8889579
UR  - https://hdl.handle.net/21.15107/rcub_dais_6909
ER  - 

@conference{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš and Krstajić, Predrag",
year = "2019",
abstract = "Real-time in situ operation of bio/chemical sensors assumes detection of chemical substances or biological specimens in samples of complex composition. Since sensor selectivity cannot be ideal, adsorption of particles other than target particles inevitably occur on the sensing surface. That affects the sensor response and its intrinsic fluctuations which are caused by stochastic fluctuations of the numbers of adsorbed particles of all the adsorbing substances. In microfluidic sensors, such response fluctuations are a result of coupled adsorption, desorption and mass transfer (convection and diffusion) processes of analyte particles. Analysis of these fluctuations is important because they constitute the adsorption-desorption noise, which limits the sensing performance. In this work we perform the analysis of fluctuations by using a stochastic model of sensor response after the steady state is reached, in the case of two-analyte adsorption, considering mass transfer processes. The results enable estimation of the ultimate sensing performance of adsorption-based microfluidic bio/chemical sensors of different sensing areas, operating in bianalyte mixture environments.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures",
pages = "161-164",
doi = "10.1109/MIEL.2019.8889579",
url = "https://hdl.handle.net/21.15107/rcub_dais_6909"
}

Jokić, I., Đurić, Z. G., Radulović, K., Frantlović, M.,& Krstajić, P.. (2019). Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 161-164.
https://doi.org/10.1109/MIEL.2019.8889579
https://hdl.handle.net/21.15107/rcub_dais_6909

Jokić I, Đurić ZG, Radulović K, Frantlović M, Krstajić P. Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:161-164.
doi:10.1109/MIEL.2019.8889579
https://hdl.handle.net/21.15107/rcub_dais_6909 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, Krstajić, Predrag, "Analysis of Intrinsic Stochastic Fluctuations of the Time Response of Adsorption-Based Microfluidic Bio/Chemical Sensors: the Case of Bianalyte Mixtures" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):161-164,
https://doi.org/10.1109/MIEL.2019.8889579 .,
https://hdl.handle.net/21.15107/rcub_dais_6909 .

TY  - CONF
AU  - Jokić, Ivana
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
AU  - Đurić, Zoran G.
AU  - Cvetanović Zobenica, Katarina
AU  - Krstajić, Predrag
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6961
AB  - Detection limits in microfluidic chemical and biological sensors, which determine the range of analyte concentrations reliably detectable by the sensor, are important sensor parameters. The lower limit of detection, defined as the lowest concentration that can be distinguished from noise, has its minimum determined by the fundamental adsorption-desorption (AD) noise, inevitable in adsorption-based devices. In this work, we analyze this fundamental detection limit, particularly considering the influence of mass transfer processes in microfluidic devices. For that purpose, we derive the expression for the sensor’s signal-to-noise ratio (SNR), which takes into account the AD noise, and then the equation for the minimal analyte concentration at which the SNR has a sufficiently high value for reliable analyte detection. Subsequently, we analyze the mass transfer influence on the sensor’s maximal achievable signal-to-noise ratio and on the fundamental detection limit. The results of the analysis show a significant mass transfer influence on these important sensor performance metrics. They also provide guidelines for achieving the sensor’s best possible detection performance through the optimization of the sensor design and operating conditions.
PB  - Belgrade : ETRAN
PB  - Belgrade :Academic Mind
C3  - Proceedings of Papers – 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, Silver Lake, Serbia, June 03 – 06, 2019 / Zbornik radova - 63. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 03 – 06. juna, 2019. godine
T1  - Analysis of the Fundamental Detection Limit in Microfluidic Chemical and Biological Sensors
SP  - 571
EP  - 574
UR  - https://hdl.handle.net/21.15107/rcub_dais_6961
ER  - 

@conference{
author = "Jokić, Ivana and Radulović, Katarina and Frantlović, Miloš and Đurić, Zoran G. and Cvetanović Zobenica, Katarina and Krstajić, Predrag",
year = "2019",
abstract = "Detection limits in microfluidic chemical and biological sensors, which determine the range of analyte concentrations reliably detectable by the sensor, are important sensor parameters. The lower limit of detection, defined as the lowest concentration that can be distinguished from noise, has its minimum determined by the fundamental adsorption-desorption (AD) noise, inevitable in adsorption-based devices. In this work, we analyze this fundamental detection limit, particularly considering the influence of mass transfer processes in microfluidic devices. For that purpose, we derive the expression for the sensor’s signal-to-noise ratio (SNR), which takes into account the AD noise, and then the equation for the minimal analyte concentration at which the SNR has a sufficiently high value for reliable analyte detection. Subsequently, we analyze the mass transfer influence on the sensor’s maximal achievable signal-to-noise ratio and on the fundamental detection limit. The results of the analysis show a significant mass transfer influence on these important sensor performance metrics. They also provide guidelines for achieving the sensor’s best possible detection performance through the optimization of the sensor design and operating conditions.",
publisher = "Belgrade : ETRAN, Belgrade :Academic Mind",
journal = "Proceedings of Papers – 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, Silver Lake, Serbia, June 03 – 06, 2019 / Zbornik radova - 63. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 03 – 06. juna, 2019. godine",
title = "Analysis of the Fundamental Detection Limit in Microfluidic Chemical and Biological Sensors",
pages = "571-574",
url = "https://hdl.handle.net/21.15107/rcub_dais_6961"
}

Jokić, I., Radulović, K., Frantlović, M., Đurić, Z. G., Cvetanović Zobenica, K.,& Krstajić, P.. (2019). Analysis of the Fundamental Detection Limit in Microfluidic Chemical and Biological Sensors. in Proceedings of Papers – 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, Silver Lake, Serbia, June 03 – 06, 2019 / Zbornik radova - 63. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 03 – 06. juna, 2019. godine
Belgrade : ETRAN., 571-574.
https://hdl.handle.net/21.15107/rcub_dais_6961

Jokić I, Radulović K, Frantlović M, Đurić ZG, Cvetanović Zobenica K, Krstajić P. Analysis of the Fundamental Detection Limit in Microfluidic Chemical and Biological Sensors. in Proceedings of Papers – 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, Silver Lake, Serbia, June 03 – 06, 2019 / Zbornik radova - 63. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 03 – 06. juna, 2019. godine. 2019;:571-574.
https://hdl.handle.net/21.15107/rcub_dais_6961 .

Jokić, Ivana, Radulović, Katarina, Frantlović, Miloš, Đurić, Zoran G., Cvetanović Zobenica, Katarina, Krstajić, Predrag, "Analysis of the Fundamental Detection Limit in Microfluidic Chemical and Biological Sensors" in Proceedings of Papers – 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, Silver Lake, Serbia, June 03 – 06, 2019 / Zbornik radova - 63. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 03 – 06. juna, 2019. godine (2019):571-574,
https://hdl.handle.net/21.15107/rcub_dais_6961 .

TY  - CONF
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
PY  - 2018
UR  - https://www.mdpi.com/2504-3900/2/13/991
UR  - https://dais.sanu.ac.rs/123456789/4715
AB  - A model of stochastic time response of adsorption-based microfluidic biosensors is presented, that considers the competitive adsorption-desorption process coupled with mass transfer of two analytes. By using the model we analyze the expected value of the adsorbed particles number of each analyte, which determine the sensor response kinetics. The comparison with the case when only one analyte exists is used for investigation of the influence of competitive adsorption on the sensor response. The response kinetics analyzed by using the stochastic model is compared with the kinetics predicted by the deterministic response model. The results are useful for optimization of micro/nanosensors intended for detection of substances in ultra-low concentrations in complex samples.
PB  - Basel : MDPI
C3  - Proceedings, Volume 2, Eurosensors 2018
T1  - Analysis of Stochastic Time Response of Microfluidic Biosensors in the Case of Competitive Adsorption of Two Analytes
SP  - 991
VL  - 2
IS  - 13
DO  - 10.3390/proceedings2130991
UR  - https://hdl.handle.net/21.15107/rcub_dais_4715
ER  - 

@conference{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš",
year = "2018",
abstract = "A model of stochastic time response of adsorption-based microfluidic biosensors is presented, that considers the competitive adsorption-desorption process coupled with mass transfer of two analytes. By using the model we analyze the expected value of the adsorbed particles number of each analyte, which determine the sensor response kinetics. The comparison with the case when only one analyte exists is used for investigation of the influence of competitive adsorption on the sensor response. The response kinetics analyzed by using the stochastic model is compared with the kinetics predicted by the deterministic response model. The results are useful for optimization of micro/nanosensors intended for detection of substances in ultra-low concentrations in complex samples.",
publisher = "Basel : MDPI",
journal = "Proceedings, Volume 2, Eurosensors 2018",
title = "Analysis of Stochastic Time Response of Microfluidic Biosensors in the Case of Competitive Adsorption of Two Analytes",
pages = "991",
volume = "2",
number = "13",
doi = "10.3390/proceedings2130991",
url = "https://hdl.handle.net/21.15107/rcub_dais_4715"
}

Jokić, I., Đurić, Z. G., Radulović, K.,& Frantlović, M.. (2018). Analysis of Stochastic Time Response of Microfluidic Biosensors in the Case of Competitive Adsorption of Two Analytes. in Proceedings, Volume 2, Eurosensors 2018
Basel : MDPI., 2(13), 991.
https://doi.org/10.3390/proceedings2130991
https://hdl.handle.net/21.15107/rcub_dais_4715

Jokić I, Đurić ZG, Radulović K, Frantlović M. Analysis of Stochastic Time Response of Microfluidic Biosensors in the Case of Competitive Adsorption of Two Analytes. in Proceedings, Volume 2, Eurosensors 2018. 2018;2(13):991.
doi:10.3390/proceedings2130991
https://hdl.handle.net/21.15107/rcub_dais_4715 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, "Analysis of Stochastic Time Response of Microfluidic Biosensors in the Case of Competitive Adsorption of Two Analytes" in Proceedings, Volume 2, Eurosensors 2018, 2, no. 13 (2018):991,
https://doi.org/10.3390/proceedings2130991 .,
https://hdl.handle.net/21.15107/rcub_dais_4715 .

TY  - CONF
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
AU  - Krstajić, Predrag
AU  - Cvetanović Zobenica, Katarina
PY  - 2018
UR  - https://www.etran.rs/2018/IcETRAN/News/IcETRAN%20sumarni%20program%20sekcija_Ver.%204.3%20(1).pdf
UR  - https://dais.sanu.ac.rs/123456789/4630
AB  - In this paper we first give a short review of two stochastic models describing both the expected value and variance of the random number of adsorbed particles in microfluidic adsorption-based chemical and biological sensors. One model takes into account the influence of coupling of stochastic adsorptiondesorption processes and mass transfer on the change of the number of adsorbed particles, while the other neglects the influence of mass transfer. Subsequently, by using the two models, we perform the analysis of the expected value and variance, as well as the sensor's signal-to-noise ratio, after reaching the steady state of all transient processes. We compare the results obtained by using the different models, and determine conditions for their application. We estimate the influences of the sensing surface area and the concentration of target particles on statistical parameters of sensor response and signal-to-noise ratio, considering the cases where mass transfer is significant, and those where it is not. We particularly analyze the mass transfer influence on the expected value, variance and signal-to-noise ratio. Such analysis does not exist in the available literature. The presented analysis yields new knowledge about the stochastic response of adsorption-based sensors, and it is significant for their optimization in order to achieve reliable analyte detection and improved sensing performance.
PB  - ETRAN
C3  - IcETRAN & ETRAN 2018, Palić 11-14. 06. 2018: Program
T1  - Steady-state analysis of stochastic time response of chemical and biological microfluidic sensors
UR  - https://hdl.handle.net/21.15107/rcub_dais_4630
ER  - 

@conference{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš and Krstajić, Predrag and Cvetanović Zobenica, Katarina",
year = "2018",
abstract = "In this paper we first give a short review of two stochastic models describing both the expected value and variance of the random number of adsorbed particles in microfluidic adsorption-based chemical and biological sensors. One model takes into account the influence of coupling of stochastic adsorptiondesorption processes and mass transfer on the change of the number of adsorbed particles, while the other neglects the influence of mass transfer. Subsequently, by using the two models, we perform the analysis of the expected value and variance, as well as the sensor's signal-to-noise ratio, after reaching the steady state of all transient processes. We compare the results obtained by using the different models, and determine conditions for their application. We estimate the influences of the sensing surface area and the concentration of target particles on statistical parameters of sensor response and signal-to-noise ratio, considering the cases where mass transfer is significant, and those where it is not. We particularly analyze the mass transfer influence on the expected value, variance and signal-to-noise ratio. Such analysis does not exist in the available literature. The presented analysis yields new knowledge about the stochastic response of adsorption-based sensors, and it is significant for their optimization in order to achieve reliable analyte detection and improved sensing performance.",
publisher = "ETRAN",
journal = "IcETRAN & ETRAN 2018, Palić 11-14. 06. 2018: Program",
title = "Steady-state analysis of stochastic time response of chemical and biological microfluidic sensors",
url = "https://hdl.handle.net/21.15107/rcub_dais_4630"
}

Jokić, I., Đurić, Z. G., Radulović, K., Frantlović, M., Krstajić, P.,& Cvetanović Zobenica, K.. (2018). Steady-state analysis of stochastic time response of chemical and biological microfluidic sensors. in IcETRAN & ETRAN 2018, Palić 11-14. 06. 2018: Program
ETRAN..
https://hdl.handle.net/21.15107/rcub_dais_4630

Jokić I, Đurić ZG, Radulović K, Frantlović M, Krstajić P, Cvetanović Zobenica K. Steady-state analysis of stochastic time response of chemical and biological microfluidic sensors. in IcETRAN & ETRAN 2018, Palić 11-14. 06. 2018: Program. 2018;.
https://hdl.handle.net/21.15107/rcub_dais_4630 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, Krstajić, Predrag, Cvetanović Zobenica, Katarina, "Steady-state analysis of stochastic time response of chemical and biological microfluidic sensors" in IcETRAN & ETRAN 2018, Palić 11-14. 06. 2018: Program (2018),
https://hdl.handle.net/21.15107/rcub_dais_4630 .

TY  - JOUR
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
PY  - 2018
UR  - http://www.sciencedirect.com/science/article/pii/S2214785318309167
UR  - https://dais.sanu.ac.rs/123456789/4550
AB  - We investigate the stochastic sensor response in equilibrium, taking into account competitive adsorption and mass transfer of analyte particles in a microfluidic biosensor chamber. After presentation of the stochastic model, we perform the analysis of the equilibrium response expected value as a function of the sensing area and the competitor molecules concentrations. By comparison with the deterministic value of the sensor response, the limits of applicability of the deterministic approach are investigated. The results of the presented analysis enable better interpretation of measurement results obtained by using sensors with micro/nanoscale sensing surface, as well as optimization of their design and operating conditions.
PB  - Elsevier
T2  - Materials Today: Proceedings
T1  - Deterministic versus Stochastic Analysis of Competitive Adsorption in Equilibrium in Microfluidic Biosensors
SP  - 16006
EP  - 16011
VL  - 5
IS  - 8, Part 2
DO  - 10.1016/j.matpr.2018.05.045
UR  - https://hdl.handle.net/21.15107/rcub_dais_4550
ER  - 

@article{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš",
year = "2018",
abstract = "We investigate the stochastic sensor response in equilibrium, taking into account competitive adsorption and mass transfer of analyte particles in a microfluidic biosensor chamber. After presentation of the stochastic model, we perform the analysis of the equilibrium response expected value as a function of the sensing area and the competitor molecules concentrations. By comparison with the deterministic value of the sensor response, the limits of applicability of the deterministic approach are investigated. The results of the presented analysis enable better interpretation of measurement results obtained by using sensors with micro/nanoscale sensing surface, as well as optimization of their design and operating conditions.",
publisher = "Elsevier",
journal = "Materials Today: Proceedings",
title = "Deterministic versus Stochastic Analysis of Competitive Adsorption in Equilibrium in Microfluidic Biosensors",
pages = "16006-16011",
volume = "5",
number = "8, Part 2",
doi = "10.1016/j.matpr.2018.05.045",
url = "https://hdl.handle.net/21.15107/rcub_dais_4550"
}

Jokić, I., Đurić, Z. G., Radulović, K.,& Frantlović, M.. (2018). Deterministic versus Stochastic Analysis of Competitive Adsorption in Equilibrium in Microfluidic Biosensors. in Materials Today: Proceedings
Elsevier., 5(8, Part 2), 16006-16011.
https://doi.org/10.1016/j.matpr.2018.05.045
https://hdl.handle.net/21.15107/rcub_dais_4550

Jokić I, Đurić ZG, Radulović K, Frantlović M. Deterministic versus Stochastic Analysis of Competitive Adsorption in Equilibrium in Microfluidic Biosensors. in Materials Today: Proceedings. 2018;5(8, Part 2):16006-16011.
doi:10.1016/j.matpr.2018.05.045
https://hdl.handle.net/21.15107/rcub_dais_4550 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, "Deterministic versus Stochastic Analysis of Competitive Adsorption in Equilibrium in Microfluidic Biosensors" in Materials Today: Proceedings, 5, no. 8, Part 2 (2018):16006-16011,
https://doi.org/10.1016/j.matpr.2018.05.045 .,
https://hdl.handle.net/21.15107/rcub_dais_4550 .

TY  - JOUR
AU  - Janićijević, Željko
AU  - Radovanović, Filip
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4526
AB  - We present the innovative synthesis of polyethersulfone/poly(acrylic acid) composite hydrogel membranesperformed by combining photoirradiation with a traditional liquid phase inversion process.Fabricated membranes exhibited ion exchange capacity and water content as high as 5.2 mmol/g and75%, respectively. The chemical composition of the membranes was determined using FTIR-ATR and theirmicrostructure was examined with SEM. Our findings suggest that the use of hydrophilic crosslinker wascrucial for the synthesis of symmetric and mechanically stable composite hydrogel membranes. Passiveand iontophoretic release kinetics from membrane reservoirs synthesized with the hydrophilic crosslinkerwere investigated in vitro using methylene blue as a model drug. Passive release kinetics wasdiffusion-controlled with pH-sensitive and loading-dependent behavior. Linear release kinetics wasdemonstrated during the iontophoretic release. Synthesized composite hydrogel membranes hold a lot ofpromise as compact stand-alone reservoirs for passive and iontophoretic delivery of cationic drugs.
PB  - Elsevier
T2  - Polymer
T1  - Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations
SP  - 56
EP  - 66
VL  - 147
DO  - 10.1016/j.polymer.2018.05.065
UR  - https://hdl.handle.net/21.15107/rcub_dais_4526
ER  - 

@article{
author = "Janićijević, Željko and Radovanović, Filip",
year = "2018",
abstract = "We present the innovative synthesis of polyethersulfone/poly(acrylic acid) composite hydrogel membranesperformed by combining photoirradiation with a traditional liquid phase inversion process.Fabricated membranes exhibited ion exchange capacity and water content as high as 5.2 mmol/g and75%, respectively. The chemical composition of the membranes was determined using FTIR-ATR and theirmicrostructure was examined with SEM. Our findings suggest that the use of hydrophilic crosslinker wascrucial for the synthesis of symmetric and mechanically stable composite hydrogel membranes. Passiveand iontophoretic release kinetics from membrane reservoirs synthesized with the hydrophilic crosslinkerwere investigated in vitro using methylene blue as a model drug. Passive release kinetics wasdiffusion-controlled with pH-sensitive and loading-dependent behavior. Linear release kinetics wasdemonstrated during the iontophoretic release. Synthesized composite hydrogel membranes hold a lot ofpromise as compact stand-alone reservoirs for passive and iontophoretic delivery of cationic drugs.",
publisher = "Elsevier",
journal = "Polymer",
title = "Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations",
pages = "56-66",
volume = "147",
doi = "10.1016/j.polymer.2018.05.065",
url = "https://hdl.handle.net/21.15107/rcub_dais_4526"
}

Janićijević, Ž.,& Radovanović, F.. (2018). Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations. in Polymer
Elsevier., 147, 56-66.
https://doi.org/10.1016/j.polymer.2018.05.065
https://hdl.handle.net/21.15107/rcub_dais_4526

Janićijević Ž, Radovanović F. Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations. in Polymer. 2018;147:56-66.
doi:10.1016/j.polymer.2018.05.065
https://hdl.handle.net/21.15107/rcub_dais_4526 .

Janićijević, Željko, Radovanović, Filip, "Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations" in Polymer, 147 (2018):56-66,
https://doi.org/10.1016/j.polymer.2018.05.065 .,
https://hdl.handle.net/21.15107/rcub_dais_4526 .

TY  - JOUR
AU  - Janićijević, Željko
AU  - Radovanović, Filip
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/3391
AB  - We present the innovative synthesis of polyethersulfone/poly(acrylic acid) composite hydrogel membranes
performed by combining photoirradiation with a traditional liquid phase inversion process.
Fabricated membranes exhibited ion exchange capacity and water content as high as 5.2 mmol/g and
75%, respectively. The chemical composition of the membranes was determined using FTIR-ATR and their
microstructure was examined with SEM. Our findings suggest that the use of hydrophilic crosslinker was
crucial for the synthesis of symmetric and mechanically stable composite hydrogel membranes. Passive
and iontophoretic release kinetics from membrane reservoirs synthesized with the hydrophilic crosslinker
were investigated in vitro using methylene blue as a model drug. Passive release kinetics was
diffusion-controlled with pH-sensitive and loading-dependent behavior. Linear release kinetics was
demonstrated during the iontophoretic release. Synthesized composite hydrogel membranes hold a lot of
promise as compact stand-alone reservoirs for passive and iontophoretic delivery of cationic drugs.
PB  - Elsevier
T2  - Polymer
T1  - Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations
SP  - 56
EP  - 66
VL  - 147
DO  - 10.1016/j.polymer.2018.05.065
UR  - https://hdl.handle.net/21.15107/rcub_dais_3391
ER  - 

@article{
author = "Janićijević, Željko and Radovanović, Filip",
year = "2018",
abstract = "We present the innovative synthesis of polyethersulfone/poly(acrylic acid) composite hydrogel membranes
performed by combining photoirradiation with a traditional liquid phase inversion process.
Fabricated membranes exhibited ion exchange capacity and water content as high as 5.2 mmol/g and
75%, respectively. The chemical composition of the membranes was determined using FTIR-ATR and their
microstructure was examined with SEM. Our findings suggest that the use of hydrophilic crosslinker was
crucial for the synthesis of symmetric and mechanically stable composite hydrogel membranes. Passive
and iontophoretic release kinetics from membrane reservoirs synthesized with the hydrophilic crosslinker
were investigated in vitro using methylene blue as a model drug. Passive release kinetics was
diffusion-controlled with pH-sensitive and loading-dependent behavior. Linear release kinetics was
demonstrated during the iontophoretic release. Synthesized composite hydrogel membranes hold a lot of
promise as compact stand-alone reservoirs for passive and iontophoretic delivery of cationic drugs.",
publisher = "Elsevier",
journal = "Polymer",
title = "Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations",
pages = "56-66",
volume = "147",
doi = "10.1016/j.polymer.2018.05.065",
url = "https://hdl.handle.net/21.15107/rcub_dais_3391"
}

Janićijević, Ž.,& Radovanović, F.. (2018). Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations. in Polymer
Elsevier., 147, 56-66.
https://doi.org/10.1016/j.polymer.2018.05.065
https://hdl.handle.net/21.15107/rcub_dais_3391

Janićijević Ž, Radovanović F. Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations. in Polymer. 2018;147:56-66.
doi:10.1016/j.polymer.2018.05.065
https://hdl.handle.net/21.15107/rcub_dais_3391 .

Janićijević, Željko, Radovanović, Filip, "Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations" in Polymer, 147 (2018):56-66,
https://doi.org/10.1016/j.polymer.2018.05.065 .,
https://hdl.handle.net/21.15107/rcub_dais_3391 .

TY  - DATA
AU  - Janićijević, Željko
AU  - Radovanović, Filip
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/3392
AB  - Supplementary information. The graphical representations of release kinetics fitting by the Korsmeyer-Peppas and Weber-Morris equations are provided. Masses of released methylene blue under different experimental conditions are given in a separate table. Estimation of membrane pore size at pH = 8 was performed using the gel correlation length model. (PDF).
PB  - Elsevier
T2  - Polymer
T1  - Supplementary information: Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations
VL  - 147
UR  - https://hdl.handle.net/21.15107/rcub_dais_3392
ER  - 

@misc{
author = "Janićijević, Željko and Radovanović, Filip",
year = "2018",
abstract = "Supplementary information. The graphical representations of release kinetics fitting by the Korsmeyer-Peppas and Weber-Morris equations are provided. Masses of released methylene blue under different experimental conditions are given in a separate table. Estimation of membrane pore size at pH = 8 was performed using the gel correlation length model. (PDF).",
publisher = "Elsevier",
journal = "Polymer",
title = "Supplementary information: Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations",
volume = "147",
url = "https://hdl.handle.net/21.15107/rcub_dais_3392"
}

Janićijević, Ž.,& Radovanović, F.. (2018). Supplementary information: Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations. in Polymer
Elsevier., 147.
https://hdl.handle.net/21.15107/rcub_dais_3392

Janićijević Ž, Radovanović F. Supplementary information: Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations. in Polymer. 2018;147.
https://hdl.handle.net/21.15107/rcub_dais_3392 .

Janićijević, Željko, Radovanović, Filip, "Supplementary information: Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations" in Polymer, 147 (2018),
https://hdl.handle.net/21.15107/rcub_dais_3392 .

TY  - CONF
AU  - Janićijević, Željko
AU  - Vujčić, Ivica T.
AU  - Vujisić, Miloš Lj.
AU  - Radovanović, Filip
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4720
AB  - Composite implants comprising a biodegradable hydrophobic polymer matrix and crosslinked hydrogel with fixed ion exchange groups are promising materials for the construction of controlled drug delivery systems. Poly(lactic-co-glycolic acid)/poly(acrylic acid) (PLGA/PAA) composite implants in our study were synthesized using the sequential application of irradiation and immersion precipitation. Precursor solutions with all functional components were dispensed into a disc-shaped non-stick mold and cured either by ultraviolet (UV) or gamma irradiation. Cured disks were subsequently immersed in the phosphate buffer saline bath to finalize phase separation and solidification of the implants. The synthesized implants were characterized by FTIR-ATR and DSC, and their basic properties such as ion exchange capacity, swelling degree, and swelling kinetics were examined. Synthesis using gamma irradiation resulted in implants with similar ion exchange capacity, but the greater swelling degree and faster swelling kinetics compared to the implants prepared with UV irradiation. Gamma irradiation also resulted in altered and less homogeneous chemical composition compared to the implants synthesized with UV irradiation. Further investigations are required to determine the differences in drug release kinetics and degradation behavior of the synthesized implants.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia
T1  - Comparative properties of composite poly(lactic-co-glycolic acid)/poly(acrylic acid) implants synthesized using ultraviolet and gamma irradiation
SP  - 28
EP  - 28
UR  - https://hdl.handle.net/21.15107/rcub_dais_4720
ER  - 

@conference{
author = "Janićijević, Željko and Vujčić, Ivica T. and Vujisić, Miloš Lj. and Radovanović, Filip",
year = "2018",
abstract = "Composite implants comprising a biodegradable hydrophobic polymer matrix and crosslinked hydrogel with fixed ion exchange groups are promising materials for the construction of controlled drug delivery systems. Poly(lactic-co-glycolic acid)/poly(acrylic acid) (PLGA/PAA) composite implants in our study were synthesized using the sequential application of irradiation and immersion precipitation. Precursor solutions with all functional components were dispensed into a disc-shaped non-stick mold and cured either by ultraviolet (UV) or gamma irradiation. Cured disks were subsequently immersed in the phosphate buffer saline bath to finalize phase separation and solidification of the implants. The synthesized implants were characterized by FTIR-ATR and DSC, and their basic properties such as ion exchange capacity, swelling degree, and swelling kinetics were examined. Synthesis using gamma irradiation resulted in implants with similar ion exchange capacity, but the greater swelling degree and faster swelling kinetics compared to the implants prepared with UV irradiation. Gamma irradiation also resulted in altered and less homogeneous chemical composition compared to the implants synthesized with UV irradiation. Further investigations are required to determine the differences in drug release kinetics and degradation behavior of the synthesized implants.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia",
title = "Comparative properties of composite poly(lactic-co-glycolic acid)/poly(acrylic acid) implants synthesized using ultraviolet and gamma irradiation",
pages = "28-28",
url = "https://hdl.handle.net/21.15107/rcub_dais_4720"
}

Janićijević, Ž., Vujčić, I. T., Vujisić, M. Lj.,& Radovanović, F.. (2018). Comparative properties of composite poly(lactic-co-glycolic acid)/poly(acrylic acid) implants synthesized using ultraviolet and gamma irradiation. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 28-28.
https://hdl.handle.net/21.15107/rcub_dais_4720

Janićijević Ž, Vujčić IT, Vujisić ML, Radovanović F. Comparative properties of composite poly(lactic-co-glycolic acid)/poly(acrylic acid) implants synthesized using ultraviolet and gamma irradiation. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia. 2018;:28-28.
https://hdl.handle.net/21.15107/rcub_dais_4720 .

Janićijević, Željko, Vujčić, Ivica T., Vujisić, Miloš Lj., Radovanović, Filip, "Comparative properties of composite poly(lactic-co-glycolic acid)/poly(acrylic acid) implants synthesized using ultraviolet and gamma irradiation" in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia (2018):28-28,
https://hdl.handle.net/21.15107/rcub_dais_4720 .

TY  - CONF
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/3684
AB  - An approximate model for efficient analysis of stochastic time response of microfluidic biosensors is presented, that considers a random AD process coupled with mass transfer (convection and diffusion) of target substance particles. The deterministic model of sensor response is also reviewed. We perform the analysis of the mass transfer influence on the kinetics and the steady-state value of the response calculated according to the two models (deterministic and stochastic). The results are presented for the sensors with different micro/nanoscale active surfaces. The comparison of the responses obtained by using the two models can be utilized to distinguish the cases in which the application of the deterministic model is justified from those in which the stochastic model is necessary. The presented findings enable more accurate interpretation of measurement results obtained by using micro/nanobiosensors.
PB  - IEEE
C3  - 2017 IEEE 30th International Conference on Microelectronics (MIEL)
T1  - Stochastic time response of adsorption-based micro/nanobiosensors with a fluidic reaction chamber: The influence of mass transfer
SP  - 127
EP  - 130
DO  - 10.1109/MIEL.2017.8190084
UR  - https://hdl.handle.net/21.15107/rcub_dais_3684
ER  - 

@conference{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš",
year = "2017",
abstract = "An approximate model for efficient analysis of stochastic time response of microfluidic biosensors is presented, that considers a random AD process coupled with mass transfer (convection and diffusion) of target substance particles. The deterministic model of sensor response is also reviewed. We perform the analysis of the mass transfer influence on the kinetics and the steady-state value of the response calculated according to the two models (deterministic and stochastic). The results are presented for the sensors with different micro/nanoscale active surfaces. The comparison of the responses obtained by using the two models can be utilized to distinguish the cases in which the application of the deterministic model is justified from those in which the stochastic model is necessary. The presented findings enable more accurate interpretation of measurement results obtained by using micro/nanobiosensors.",
publisher = "IEEE",
journal = "2017 IEEE 30th International Conference on Microelectronics (MIEL)",
title = "Stochastic time response of adsorption-based micro/nanobiosensors with a fluidic reaction chamber: The influence of mass transfer",
pages = "127-130",
doi = "10.1109/MIEL.2017.8190084",
url = "https://hdl.handle.net/21.15107/rcub_dais_3684"
}

Jokić, I., Đurić, Z. G., Radulović, K.,& Frantlović, M.. (2017). Stochastic time response of adsorption-based micro/nanobiosensors with a fluidic reaction chamber: The influence of mass transfer. in 2017 IEEE 30th International Conference on Microelectronics (MIEL)
IEEE., 127-130.
https://doi.org/10.1109/MIEL.2017.8190084
https://hdl.handle.net/21.15107/rcub_dais_3684

Jokić I, Đurić ZG, Radulović K, Frantlović M. Stochastic time response of adsorption-based micro/nanobiosensors with a fluidic reaction chamber: The influence of mass transfer. in 2017 IEEE 30th International Conference on Microelectronics (MIEL). 2017;:127-130.
doi:10.1109/MIEL.2017.8190084
https://hdl.handle.net/21.15107/rcub_dais_3684 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, "Stochastic time response of adsorption-based micro/nanobiosensors with a fluidic reaction chamber: The influence of mass transfer" in 2017 IEEE 30th International Conference on Microelectronics (MIEL) (2017):127-130,
https://doi.org/10.1109/MIEL.2017.8190084 .,
https://hdl.handle.net/21.15107/rcub_dais_3684 .

TY  - JOUR
AU  - Vorkapić, Miloš
AU  - Radovanović, Filip
AU  - Ćoćkalo, Dragan
AU  - Đorđević, Dejan
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/776
AB  - Lean management (LM) is a set of procedures and principles used in industrial processes for finding and eliminating useless activities. This paper presents the analysis of business practices in small-scale manufacturing enterprises in Serbia in comparison with defined LM principles. The aim of this study was to determine differences between the business practices in small and micro enterprises (SMEs) in Serbia and LM standards in order to provide recommendations for improving business performance and production. Application of LM standards to reduce waste and optimize production in SMEs in Serbia has not been investigated before, although this practice has been successfully used in neighboring countries, such as Slovenia, Romania and Macedonia. The importance of this new approach is directly related to the benefits that can be achieved to improve business practices in SMEs in Serbia. This study shows that enterprises lack a system which ensures that the customer gets a quality product on time, the optimization of production and resources are limited, standard procedures are not sufficiently implemented in micro enterprises, and a significant difference exists between job requirements and skills of the employees. The recommendations to improve operations in accordance with the LM principles include introduction of a monitoring and control system to ensure timely delivery and customer satisfaction, tools introduction such as 5S, Value Stream Mapping (VSM), inventory management, and Kaizen as a philosophy of continuous improvement.
T2  - Tehnički vjesnik
T1  - Applicability of the lean concept to the management of small-scale manufacturing enterprises in Serbia
SP  - 1929
SP  - 1934
EP  - 1934
VL  - 24
IS  - 6
DO  - 10.17559/TV-20150807194942
UR  - https://hdl.handle.net/21.15107/rcub_dais_776
ER  - 

@article{
author = "Vorkapić, Miloš and Radovanović, Filip and Ćoćkalo, Dragan and Đorđević, Dejan",
year = "2017",
abstract = "Lean management (LM) is a set of procedures and principles used in industrial processes for finding and eliminating useless activities. This paper presents the analysis of business practices in small-scale manufacturing enterprises in Serbia in comparison with defined LM principles. The aim of this study was to determine differences between the business practices in small and micro enterprises (SMEs) in Serbia and LM standards in order to provide recommendations for improving business performance and production. Application of LM standards to reduce waste and optimize production in SMEs in Serbia has not been investigated before, although this practice has been successfully used in neighboring countries, such as Slovenia, Romania and Macedonia. The importance of this new approach is directly related to the benefits that can be achieved to improve business practices in SMEs in Serbia. This study shows that enterprises lack a system which ensures that the customer gets a quality product on time, the optimization of production and resources are limited, standard procedures are not sufficiently implemented in micro enterprises, and a significant difference exists between job requirements and skills of the employees. The recommendations to improve operations in accordance with the LM principles include introduction of a monitoring and control system to ensure timely delivery and customer satisfaction, tools introduction such as 5S, Value Stream Mapping (VSM), inventory management, and Kaizen as a philosophy of continuous improvement.",
journal = "Tehnički vjesnik",
title = "Applicability of the lean concept to the management of small-scale manufacturing enterprises in Serbia",
pages = "1929-1934-1934",
volume = "24",
number = "6",
doi = "10.17559/TV-20150807194942",
url = "https://hdl.handle.net/21.15107/rcub_dais_776"
}

Vorkapić, M., Radovanović, F., Ćoćkalo, D.,& Đorđević, D.. (2017). Applicability of the lean concept to the management of small-scale manufacturing enterprises in Serbia. in Tehnički vjesnik, 24(6), 1929-1934.
https://doi.org/10.17559/TV-20150807194942
https://hdl.handle.net/21.15107/rcub_dais_776

Vorkapić M, Radovanović F, Ćoćkalo D, Đorđević D. Applicability of the lean concept to the management of small-scale manufacturing enterprises in Serbia. in Tehnički vjesnik. 2017;24(6):1929-1934.
doi:10.17559/TV-20150807194942
https://hdl.handle.net/21.15107/rcub_dais_776 .

Vorkapić, Miloš, Radovanović, Filip, Ćoćkalo, Dragan, Đorđević, Dejan, "Applicability of the lean concept to the management of small-scale manufacturing enterprises in Serbia" in Tehnički vjesnik, 24, no. 6 (2017):1929-1934,
https://doi.org/10.17559/TV-20150807194942 .,
https://hdl.handle.net/21.15107/rcub_dais_776 .

TY  - CONF
AU  - Janićijević, Željko
AU  - Ninkov, Marina
AU  - Kataranovski, Marina
AU  - Radovanović, Filip
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/15452
AB  - Composites of biodegradable polymers and hydrogels are promising materials for controlled delivery systems with prolonged drug release. In this contribution, we present an innovative implant design comprising poly(DL-lactide-co-ε-caprolactone) copolymer base and a crosslinked poly(acrylic acid) hydrogel. Implants were prepared in the form of disks using the modified traditional liquid phase inversion process. Solutions containing all implant precursors were dispensed into transparent non-stick molds and cured by UV irradiation. UV curing was followed by immersion into the phosphate buffer solution bath to achieve phase separation and solidification. Structure and composition of the implant were characterized using SEM and FTIR. Obtained implants exhibited high loading capacity for cationic formulations and a moderate degree of swelling. Studies of implant loading and subsequent release of methylene blue into the phosphate-buffered saline demonstrated diffusioncontrolled delivery kinetics over a period of several weeks. To assess biocompatibility of implants as possible materials for drug delivery systems in mammals, we evaluated their effects on viability (Trypan blue exclusion assay), metabolic activity, proliferation (MTT assay) and priming (nitric oxide/NO production) of freshly isolated rat splenocytes during 24 h and 48 h of cultivation. The viability was unaltered, metabolic activity/proliferation was increased after 48 h and the decrease of NO production, as well as drop in responsiveness to cell mitogen concanavalin A (ConA) in cells on implants were observed. These results suggest that implants could be used as a suitable material for drug delivery systems, but their capacity to stimulate cell proliferation and their immunosuppressive potential deserve further investigations.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
T1  - Biodegradable polymer/hydrogel composite for controlled delivery of cationic formulations
SP  - 9
EP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_dais_15452
ER  - 

@conference{
author = "Janićijević, Željko and Ninkov, Marina and Kataranovski, Marina and Radovanović, Filip",
year = "2017",
abstract = "Composites of biodegradable polymers and hydrogels are promising materials for controlled delivery systems with prolonged drug release. In this contribution, we present an innovative implant design comprising poly(DL-lactide-co-ε-caprolactone) copolymer base and a crosslinked poly(acrylic acid) hydrogel. Implants were prepared in the form of disks using the modified traditional liquid phase inversion process. Solutions containing all implant precursors were dispensed into transparent non-stick molds and cured by UV irradiation. UV curing was followed by immersion into the phosphate buffer solution bath to achieve phase separation and solidification. Structure and composition of the implant were characterized using SEM and FTIR. Obtained implants exhibited high loading capacity for cationic formulations and a moderate degree of swelling. Studies of implant loading and subsequent release of methylene blue into the phosphate-buffered saline demonstrated diffusioncontrolled delivery kinetics over a period of several weeks. To assess biocompatibility of implants as possible materials for drug delivery systems in mammals, we evaluated their effects on viability (Trypan blue exclusion assay), metabolic activity, proliferation (MTT assay) and priming (nitric oxide/NO production) of freshly isolated rat splenocytes during 24 h and 48 h of cultivation. The viability was unaltered, metabolic activity/proliferation was increased after 48 h and the decrease of NO production, as well as drop in responsiveness to cell mitogen concanavalin A (ConA) in cells on implants were observed. These results suggest that implants could be used as a suitable material for drug delivery systems, but their capacity to stimulate cell proliferation and their immunosuppressive potential deserve further investigations.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia",
title = "Biodegradable polymer/hydrogel composite for controlled delivery of cationic formulations",
pages = "9-9",
url = "https://hdl.handle.net/21.15107/rcub_dais_15452"
}

Janićijević, Ž., Ninkov, M., Kataranovski, M.,& Radovanović, F.. (2017). Biodegradable polymer/hydrogel composite for controlled delivery of cationic formulations. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 9-9.
https://hdl.handle.net/21.15107/rcub_dais_15452

Janićijević Ž, Ninkov M, Kataranovski M, Radovanović F. Biodegradable polymer/hydrogel composite for controlled delivery of cationic formulations. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia. 2017;:9-9.
https://hdl.handle.net/21.15107/rcub_dais_15452 .

Janićijević, Željko, Ninkov, Marina, Kataranovski, Marina, Radovanović, Filip, "Biodegradable polymer/hydrogel composite for controlled delivery of cationic formulations" in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia (2017):9-9,
https://hdl.handle.net/21.15107/rcub_dais_15452 .

TY  - CONF
AU  - Janićijević, Željko
AU  - Radovanović, Filip
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/887
AB  - Polymeric pH-sensitive membranes and hydrogels are interesting materials for the controlled delivery of chemical agents triggered by external stimuli. In this contribution, we present a novel membrane design consisting of a polyethersulfone polymeric base and a crosslinked poly(acrylic acid) hydrogel containing pH-responsive carboxyl groups. Membranes were prepared using the modified traditional liquid phase inversion process. Solutions containing all membrane precursors were cast on a glass plate and cured by UV irradiation. UV curing was followed by immersion into the water bath to achieve phase separation and solidification. Obtained membranes exhibited high ion-exchange capacity and a moderate swelling degree dependent on the crosslinker properties. Studies of membrane loading with methylene blue and subsequent release of methylene blue from the membrane into the alkaline and acidic buffered solutions demonstrated pH-dependent delivery kinetics.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade
T1  - pH-sensitive membranes with crosslinked poly(acrylic acid) hydrogel for controlled delivery
SP  - 55
EP  - 55
UR  - https://hdl.handle.net/21.15107/rcub_dais_887
ER  - 

@conference{
author = "Janićijević, Željko and Radovanović, Filip",
year = "2016",
abstract = "Polymeric pH-sensitive membranes and hydrogels are interesting materials for the controlled delivery of chemical agents triggered by external stimuli. In this contribution, we present a novel membrane design consisting of a polyethersulfone polymeric base and a crosslinked poly(acrylic acid) hydrogel containing pH-responsive carboxyl groups. Membranes were prepared using the modified traditional liquid phase inversion process. Solutions containing all membrane precursors were cast on a glass plate and cured by UV irradiation. UV curing was followed by immersion into the water bath to achieve phase separation and solidification. Obtained membranes exhibited high ion-exchange capacity and a moderate swelling degree dependent on the crosslinker properties. Studies of membrane loading with methylene blue and subsequent release of methylene blue from the membrane into the alkaline and acidic buffered solutions demonstrated pH-dependent delivery kinetics.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade",
title = "pH-sensitive membranes with crosslinked poly(acrylic acid) hydrogel for controlled delivery",
pages = "55-55",
url = "https://hdl.handle.net/21.15107/rcub_dais_887"
}

Janićijević, Ž.,& Radovanović, F.. (2016). pH-sensitive membranes with crosslinked poly(acrylic acid) hydrogel for controlled delivery. in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade
Belgrade : Institute of Technical Sciences of SASA., 55-55.
https://hdl.handle.net/21.15107/rcub_dais_887

Janićijević Ž, Radovanović F. pH-sensitive membranes with crosslinked poly(acrylic acid) hydrogel for controlled delivery. in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade. 2016;:55-55.
https://hdl.handle.net/21.15107/rcub_dais_887 .

Janićijević, Željko, Radovanović, Filip, "pH-sensitive membranes with crosslinked poly(acrylic acid) hydrogel for controlled delivery" in Program and the Book of Abstracts / Fifteenth Young Researchers' Conference Materials Sciences and Engineering, December 7-9, 2016, Belgrade (2016):55-55,
https://hdl.handle.net/21.15107/rcub_dais_887 .

TY  - JOUR
AU  - Jokić, Ivana
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Frantlović, Miloš
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/3538
AB  - A theoretical model of fluctuations of the number of adsorbed micro/nanoparticles in environmental sensors operating in air and liquids is presented, taking into account the effects of the mass transfer processes of the target particles in a sensor reaction chamber. The expressions for the total power of the corresponding adsorption-desorption noise, and for the corresponding signal-to-noise ratio are also derived. The presented analysis shows that the transfer processes can have a significant influence on the sensors limiting performance. The influence on both the fluctuations spectrum and the signal-to-noise ratio is estimated at different values of target particles concentration, functionalization sites surface density, and adsorption and desorption rate constants (the values are chosen from the ranges corresponding to real conditions). The analysis provides the guidelines for optimization of sensor design and operating conditions for the given target substance and sensor functionalization, in order to decrease the influence of the mass transfer, thus improving the ultimate performance (e.g., minimal detectable signal, signal-to-noise ratio) of sensors for particle detection. The calculations we performed show that it is possible to increase the signal-to-noise ratio for as much as two orders of magnitude by using optimization that eliminates the mass transfer influence. © 2015, CI and CEQ. All Rights Reserved.
PB  - Belgrade: Association of the Chemical Engineers of Serbia
T2  - Chemical Industry and Chemical Engineering Quarterly
T1  - Fluctuations of the number of adsorbed micro/nanoparticles in sensors for measurement of particle concentration in air and liquid environments
SP  - 141
EP  - 147
VL  - 21
IS  - 1-2
DO  - 10.2298/CICEQ140219011J
UR  - https://hdl.handle.net/21.15107/rcub_dais_3538
ER  - 

@article{
author = "Jokić, Ivana and Đurić, Zoran G. and Radulović, Katarina and Frantlović, Miloš",
year = "2015",
abstract = "A theoretical model of fluctuations of the number of adsorbed micro/nanoparticles in environmental sensors operating in air and liquids is presented, taking into account the effects of the mass transfer processes of the target particles in a sensor reaction chamber. The expressions for the total power of the corresponding adsorption-desorption noise, and for the corresponding signal-to-noise ratio are also derived. The presented analysis shows that the transfer processes can have a significant influence on the sensors limiting performance. The influence on both the fluctuations spectrum and the signal-to-noise ratio is estimated at different values of target particles concentration, functionalization sites surface density, and adsorption and desorption rate constants (the values are chosen from the ranges corresponding to real conditions). The analysis provides the guidelines for optimization of sensor design and operating conditions for the given target substance and sensor functionalization, in order to decrease the influence of the mass transfer, thus improving the ultimate performance (e.g., minimal detectable signal, signal-to-noise ratio) of sensors for particle detection. The calculations we performed show that it is possible to increase the signal-to-noise ratio for as much as two orders of magnitude by using optimization that eliminates the mass transfer influence. © 2015, CI and CEQ. All Rights Reserved.",
publisher = "Belgrade: Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry and Chemical Engineering Quarterly",
title = "Fluctuations of the number of adsorbed micro/nanoparticles in sensors for measurement of particle concentration in air and liquid environments",
pages = "141-147",
volume = "21",
number = "1-2",
doi = "10.2298/CICEQ140219011J",
url = "https://hdl.handle.net/21.15107/rcub_dais_3538"
}

Jokić, I., Đurić, Z. G., Radulović, K.,& Frantlović, M.. (2015). Fluctuations of the number of adsorbed micro/nanoparticles in sensors for measurement of particle concentration in air and liquid environments. in Chemical Industry and Chemical Engineering Quarterly
Belgrade: Association of the Chemical Engineers of Serbia., 21(1-2), 141-147.
https://doi.org/10.2298/CICEQ140219011J
https://hdl.handle.net/21.15107/rcub_dais_3538

Jokić I, Đurić ZG, Radulović K, Frantlović M. Fluctuations of the number of adsorbed micro/nanoparticles in sensors for measurement of particle concentration in air and liquid environments. in Chemical Industry and Chemical Engineering Quarterly. 2015;21(1-2):141-147.
doi:10.2298/CICEQ140219011J
https://hdl.handle.net/21.15107/rcub_dais_3538 .

Jokić, Ivana, Đurić, Zoran G., Radulović, Katarina, Frantlović, Miloš, "Fluctuations of the number of adsorbed micro/nanoparticles in sensors for measurement of particle concentration in air and liquid environments" in Chemical Industry and Chemical Engineering Quarterly, 21, no. 1-2 (2015):141-147,
https://doi.org/10.2298/CICEQ140219011J .,
https://hdl.handle.net/21.15107/rcub_dais_3538 .

TY  - JOUR
AU  - Jokić, Ivana
AU  - Frantlović, Miloš
AU  - Đurić, Zoran G.
AU  - Radulović, Katarina
AU  - Jokić, Zorana
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/3519
AB  - We present a theoretical model of adsorption-desorption (AD) noise in microfluidic biosensors operating in multianalyte environments. This noise is caused by the stochastic nature of the processes that generate the sensor response: reversible adsorption of n analytes coupled with mass transfer (convection and diffusion) of analyte particles through the microfluidic channel to and from the surface binding sites. The parameters of the obtained analytical expression for the AD noise power spectral density, determining the shape of the noise spectrum, contain information on the concentrations of all the adsorbing species, their association and dissociation rate constants, mass transfer coefficients and molecular masses. The AD noise spectrum, therefore, offers additional data about multiple analytes, apart from those obtained by the commonly used time domain analysis of sensor response. Therefore the derived model of AD noise contributes to the theoretical basis necessary for the development of new methods for determination of target analyte parameters in complex samples or even for simultaneous detection of multiple analytes using a single sensor, based on the measured noise spectrum. © 2015 Published by Elsevier B.V.
PB  - Elsevier
T2  - Microelectronic Engineering
T1  - Adsorption-desorption noise in microfluidic biosensors operating in multianalyte environments
SP  - 32
EP  - 36
VL  - 144
DO  - 10.1016/j.mee.2015.02.032
UR  - https://hdl.handle.net/21.15107/rcub_dais_3519
ER  - 

@article{
author = "Jokić, Ivana and Frantlović, Miloš and Đurić, Zoran G. and Radulović, Katarina and Jokić, Zorana",
year = "2015",
abstract = "We present a theoretical model of adsorption-desorption (AD) noise in microfluidic biosensors operating in multianalyte environments. This noise is caused by the stochastic nature of the processes that generate the sensor response: reversible adsorption of n analytes coupled with mass transfer (convection and diffusion) of analyte particles through the microfluidic channel to and from the surface binding sites. The parameters of the obtained analytical expression for the AD noise power spectral density, determining the shape of the noise spectrum, contain information on the concentrations of all the adsorbing species, their association and dissociation rate constants, mass transfer coefficients and molecular masses. The AD noise spectrum, therefore, offers additional data about multiple analytes, apart from those obtained by the commonly used time domain analysis of sensor response. Therefore the derived model of AD noise contributes to the theoretical basis necessary for the development of new methods for determination of target analyte parameters in complex samples or even for simultaneous detection of multiple analytes using a single sensor, based on the measured noise spectrum. © 2015 Published by Elsevier B.V.",
publisher = "Elsevier",
journal = "Microelectronic Engineering",
title = "Adsorption-desorption noise in microfluidic biosensors operating in multianalyte environments",
pages = "32-36",
volume = "144",
doi = "10.1016/j.mee.2015.02.032",
url = "https://hdl.handle.net/21.15107/rcub_dais_3519"
}

Jokić, I., Frantlović, M., Đurić, Z. G., Radulović, K.,& Jokić, Z.. (2015). Adsorption-desorption noise in microfluidic biosensors operating in multianalyte environments. in Microelectronic Engineering
Elsevier., 144, 32-36.
https://doi.org/10.1016/j.mee.2015.02.032
https://hdl.handle.net/21.15107/rcub_dais_3519

Jokić I, Frantlović M, Đurić ZG, Radulović K, Jokić Z. Adsorption-desorption noise in microfluidic biosensors operating in multianalyte environments. in Microelectronic Engineering. 2015;144:32-36.
doi:10.1016/j.mee.2015.02.032
https://hdl.handle.net/21.15107/rcub_dais_3519 .

Jokić, Ivana, Frantlović, Miloš, Đurić, Zoran G., Radulović, Katarina, Jokić, Zorana, "Adsorption-desorption noise in microfluidic biosensors operating in multianalyte environments" in Microelectronic Engineering, 144 (2015):32-36,
https://doi.org/10.1016/j.mee.2015.02.032 .,
https://hdl.handle.net/21.15107/rcub_dais_3519 .

TY  - JOUR
AU  - Stajčić, Aleksandar
AU  - Nastasović, Aleksandra
AU  - Stajić-Trošić, Jasna
AU  - Marković, Jelena
AU  - Onjia, Antonije
AU  - Radovanović, Filip
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/774
AB  - Polyethersulfone membranes with integrated negatively-charged hydrogel of crosslinked poly(acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a liquid phase inversion process with photopolymerization and crosslinking of functional monomers included in the casting solution. A designed experiment was conducted to select the optimal composition for preparing membranes with a sufficient degree of swelling and ion exchange capacity. Scanning electron microscopy images revealed an ultrafine hybrid structure with an interconnected network of submicron particles embedded within the microporous polyethersulfone support. An intramembrane diffusion model was used to describe kinetics of heavy metal sorption by these hydrogels and the calculated apparent diffusion coefficients were 2–3 times larger than in commercial ion-exchange resins. Equilibrium sorption of heavy metals was described using a semi-empirical Langmuir model.
PB  - Elsevier
T2  - Journal of Environmental Chemical Engineering
T1  - Novel membrane-supported hydrogel for removal of heavy metals
SP  - 453
EP  - 461
VL  - 3
IS  - 1
DO  - 10.1016/j.jece.2015.01.005
UR  - https://hdl.handle.net/21.15107/rcub_dais_774
ER  - 

@article{
author = "Stajčić, Aleksandar and Nastasović, Aleksandra and Stajić-Trošić, Jasna and Marković, Jelena and Onjia, Antonije and Radovanović, Filip",
year = "2015",
abstract = "Polyethersulfone membranes with integrated negatively-charged hydrogel of crosslinked poly(acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a liquid phase inversion process with photopolymerization and crosslinking of functional monomers included in the casting solution. A designed experiment was conducted to select the optimal composition for preparing membranes with a sufficient degree of swelling and ion exchange capacity. Scanning electron microscopy images revealed an ultrafine hybrid structure with an interconnected network of submicron particles embedded within the microporous polyethersulfone support. An intramembrane diffusion model was used to describe kinetics of heavy metal sorption by these hydrogels and the calculated apparent diffusion coefficients were 2–3 times larger than in commercial ion-exchange resins. Equilibrium sorption of heavy metals was described using a semi-empirical Langmuir model.",
publisher = "Elsevier",
journal = "Journal of Environmental Chemical Engineering",
title = "Novel membrane-supported hydrogel for removal of heavy metals",
pages = "453-461",
volume = "3",
number = "1",
doi = "10.1016/j.jece.2015.01.005",
url = "https://hdl.handle.net/21.15107/rcub_dais_774"
}

Stajčić, A., Nastasović, A., Stajić-Trošić, J., Marković, J., Onjia, A.,& Radovanović, F.. (2015). Novel membrane-supported hydrogel for removal of heavy metals. in Journal of Environmental Chemical Engineering
Elsevier., 3(1), 453-461.
https://doi.org/10.1016/j.jece.2015.01.005
https://hdl.handle.net/21.15107/rcub_dais_774

Stajčić A, Nastasović A, Stajić-Trošić J, Marković J, Onjia A, Radovanović F. Novel membrane-supported hydrogel for removal of heavy metals. in Journal of Environmental Chemical Engineering. 2015;3(1):453-461.
doi:10.1016/j.jece.2015.01.005
https://hdl.handle.net/21.15107/rcub_dais_774 .

Stajčić, Aleksandar, Nastasović, Aleksandra, Stajić-Trošić, Jasna, Marković, Jelena, Onjia, Antonije, Radovanović, Filip, "Novel membrane-supported hydrogel for removal of heavy metals" in Journal of Environmental Chemical Engineering, 3, no. 1 (2015):453-461,
https://doi.org/10.1016/j.jece.2015.01.005 .,
https://hdl.handle.net/21.15107/rcub_dais_774 .

TY  - JOUR
AU  - Tomković, Tanja
AU  - Radovanović, Filip
AU  - Grgur, Branimir
AU  - Nastasović, Aleksandra
AU  - Vasiljević Radović, Dana
AU  - Onjia, Antonije
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/775
AB  - A novel method combining a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution was used to prepare asymmetric polyethersulfone membranes with submicron particles incorporating glycidyl methacrylate copolymer. In order to introduce sulfonic groups epoxide rings of glycidyl methacrylate were opened using two methods. The first method was functionalization with sodium sulfite, and the second method was functionalization with sulfuric acid and then grafting with 2-acrylamido-2-methylpropane sulfonic acid. Obtained membranes were characterized using infrared spectroscopy, conductometric titration and water permeability measurements. Scanning electron microscopy and atomic force microscopy were used to investigate the surface morphology and topology of membrane. Dynamic adsorption of Rhodamine B as a model dye was used to demonstrate suitability of these novel membranes for membrane adsorption since the adsorption capacity for dye cations was much better for both functionalized membrane with sodium sulfite and grafted membrane with 2-acrylamido-2-methylpropane sulfonic acid compared to the nonfunctionalized membrane.
T2  - Journal of the Serbian Chemical Society
T1  - Novel negatively-charged membrane adsorbers made using combination of photopolymerization and immersion precipitation
SP  - 419
EP  - 431
VL  - 81
IS  - 4
DO  - 10.2298/JSC150805083T
UR  - https://hdl.handle.net/21.15107/rcub_dais_775
ER  - 

@article{
author = "Tomković, Tanja and Radovanović, Filip and Grgur, Branimir and Nastasović, Aleksandra and Vasiljević Radović, Dana and Onjia, Antonije",
year = "2015",
abstract = "A novel method combining a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution was used to prepare asymmetric polyethersulfone membranes with submicron particles incorporating glycidyl methacrylate copolymer. In order to introduce sulfonic groups epoxide rings of glycidyl methacrylate were opened using two methods. The first method was functionalization with sodium sulfite, and the second method was functionalization with sulfuric acid and then grafting with 2-acrylamido-2-methylpropane sulfonic acid. Obtained membranes were characterized using infrared spectroscopy, conductometric titration and water permeability measurements. Scanning electron microscopy and atomic force microscopy were used to investigate the surface morphology and topology of membrane. Dynamic adsorption of Rhodamine B as a model dye was used to demonstrate suitability of these novel membranes for membrane adsorption since the adsorption capacity for dye cations was much better for both functionalized membrane with sodium sulfite and grafted membrane with 2-acrylamido-2-methylpropane sulfonic acid compared to the nonfunctionalized membrane.",
journal = "Journal of the Serbian Chemical Society",
title = "Novel negatively-charged membrane adsorbers made using combination of photopolymerization and immersion precipitation",
pages = "419-431",
volume = "81",
number = "4",
doi = "10.2298/JSC150805083T",
url = "https://hdl.handle.net/21.15107/rcub_dais_775"
}

Tomković, T., Radovanović, F., Grgur, B., Nastasović, A., Vasiljević Radović, D.,& Onjia, A.. (2015). Novel negatively-charged membrane adsorbers made using combination of photopolymerization and immersion precipitation. in Journal of the Serbian Chemical Society, 81(4), 419-431.
https://doi.org/10.2298/JSC150805083T
https://hdl.handle.net/21.15107/rcub_dais_775

Tomković T, Radovanović F, Grgur B, Nastasović A, Vasiljević Radović D, Onjia A. Novel negatively-charged membrane adsorbers made using combination of photopolymerization and immersion precipitation. in Journal of the Serbian Chemical Society. 2015;81(4):419-431.
doi:10.2298/JSC150805083T
https://hdl.handle.net/21.15107/rcub_dais_775 .

Tomković, Tanja, Radovanović, Filip, Grgur, Branimir, Nastasović, Aleksandra, Vasiljević Radović, Dana, Onjia, Antonije, "Novel negatively-charged membrane adsorbers made using combination of photopolymerization and immersion precipitation" in Journal of the Serbian Chemical Society, 81, no. 4 (2015):419-431,
https://doi.org/10.2298/JSC150805083T .,
https://hdl.handle.net/21.15107/rcub_dais_775 .

TY  - CONF
AU  - Radulović, Katarina
AU  - Radovanović, Filip
AU  - Ranđelović, Danijela
AU  - Jović, Vesna
AU  - Lamovec, Jelena
AU  - Vasiljević Radović, Dana
AU  - Jakšić, Zoran
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/787
AB  - Properties of sintered NdFeB magnets strongly depend on granulation and size distribution of constituent particles, which requires an efficient method for their separation into relatively narrow size fractions. We investigated two methods of magnetic particle separation from a mixture with different sizes using simulation by finite element method: magnetophoresis and gravity settling. In the case of magnetophoresis magnetic particles ranging in diameter from 1 to 10 m were deflected from the direction of continuous laminar flow by a perpendicular magnetic field. Larger particles were deflected from the direction of laminar flow more than smaller particles. The applied flow rate and strength and gradient of the applied magnetic field were the key parameters in controlling the deflection. The gravity settling model simulated spherical particles falling in heptane. Particles of various sizes were divided according to the time they needed to reach the bottom. The model used an axially symmetric fluid-flow simulation in a moving coordinate system connected with the particle, coupled with an ordinary differential equation for the force balance of the particle (gravity and drag force). The grain accelerated from standstill and rapidly reached its terminal velocity. This velocity was approximately proportional to the square of the particle radius, which led to clear separation of 5-10 um particles from those with a diameter of 1 um.
PB  - Belgrade : ETRAN Society
C3  - 59. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 8-11. juna, 2015. godine [i] 2nd International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2015 Silver Lake (Srebrno jezero), Serbia, June 8-11, 2015: Proceedings
T1  - Modelling the size separation of NdFeB magnetic microparticles by magnetophoresis and gravity settling
UR  - https://hdl.handle.net/21.15107/rcub_dais_787
ER  - 

@conference{
author = "Radulović, Katarina and Radovanović, Filip and Ranđelović, Danijela and Jović, Vesna and Lamovec, Jelena and Vasiljević Radović, Dana and Jakšić, Zoran",
year = "2015",
abstract = "Properties of sintered NdFeB magnets strongly depend on granulation and size distribution of constituent particles, which requires an efficient method for their separation into relatively narrow size fractions. We investigated two methods of magnetic particle separation from a mixture with different sizes using simulation by finite element method: magnetophoresis and gravity settling. In the case of magnetophoresis magnetic particles ranging in diameter from 1 to 10 m were deflected from the direction of continuous laminar flow by a perpendicular magnetic field. Larger particles were deflected from the direction of laminar flow more than smaller particles. The applied flow rate and strength and gradient of the applied magnetic field were the key parameters in controlling the deflection. The gravity settling model simulated spherical particles falling in heptane. Particles of various sizes were divided according to the time they needed to reach the bottom. The model used an axially symmetric fluid-flow simulation in a moving coordinate system connected with the particle, coupled with an ordinary differential equation for the force balance of the particle (gravity and drag force). The grain accelerated from standstill and rapidly reached its terminal velocity. This velocity was approximately proportional to the square of the particle radius, which led to clear separation of 5-10 um particles from those with a diameter of 1 um.",
publisher = "Belgrade : ETRAN Society",
journal = "59. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 8-11. juna, 2015. godine [i] 2nd International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2015 Silver Lake (Srebrno jezero), Serbia, June 8-11, 2015: Proceedings",
title = "Modelling the size separation of NdFeB magnetic microparticles by magnetophoresis and gravity settling",
url = "https://hdl.handle.net/21.15107/rcub_dais_787"
}

Radulović, K., Radovanović, F., Ranđelović, D., Jović, V., Lamovec, J., Vasiljević Radović, D.,& Jakšić, Z.. (2015). Modelling the size separation of NdFeB magnetic microparticles by magnetophoresis and gravity settling. in 59. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 8-11. juna, 2015. godine [i] 2nd International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2015 Silver Lake (Srebrno jezero), Serbia, June 8-11, 2015: Proceedings
Belgrade : ETRAN Society..
https://hdl.handle.net/21.15107/rcub_dais_787

Radulović K, Radovanović F, Ranđelović D, Jović V, Lamovec J, Vasiljević Radović D, Jakšić Z. Modelling the size separation of NdFeB magnetic microparticles by magnetophoresis and gravity settling. in 59. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 8-11. juna, 2015. godine [i] 2nd International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2015 Silver Lake (Srebrno jezero), Serbia, June 8-11, 2015: Proceedings. 2015;.
https://hdl.handle.net/21.15107/rcub_dais_787 .

Radulović, Katarina, Radovanović, Filip, Ranđelović, Danijela, Jović, Vesna, Lamovec, Jelena, Vasiljević Radović, Dana, Jakšić, Zoran, "Modelling the size separation of NdFeB magnetic microparticles by magnetophoresis and gravity settling" in 59. Konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku, Srebrno jezero, 8-11. juna, 2015. godine [i] 2nd International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2015 Silver Lake (Srebrno jezero), Serbia, June 8-11, 2015: Proceedings (2015),
https://hdl.handle.net/21.15107/rcub_dais_787 .

TY  - CONF
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Radovanović, Filip
AU  - Ranđelović, Danijela
AU  - Radulović, Katarina
AU  - Jakšić, Zoran
AU  - Vasiljević Radović, Dana
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/804
AB  - Improved permanent magnets are essential for emergent applications in electronic and electric devices. Different attempts have been made to produce nanoscale anisotropic rare-earth magnetic powder based on Nd-Fe-B material. Recently, high energy surfactant assisted ball milling has been proven to be an effective technique to produce anisotropic hard magnetic Nd-Fe-B nanoparticles. In this paper we are presenting our experimental results on high energy ball milling in planetary mill "Puverisette 7 premium line" from "Fritsch". Except milling material, there are several variables which influence the milling process for the selected mill type. They are: mechanical properties of the milling media material (bowls, balls, etc.), ball-to-powder ratio (BPR), extent of filling of the milling bowl, milling atmosphere, milling speed and duration, and type of solution and surfactant for wet milling. We are going to give influence of all these parameters on obtained NdFeB magnetic materials with nanosized dimensions starting from Nd2Fe14B HDD (Hydrogenated Disproportionated Desorbed) material. 

Acknowledgements: This work is funded by FP7 project MAG-DRIVE: "New permanent magnets for electric-vehicle drive applications", grant agreement no: 605348.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Seventeenth Annual Conference YUCOMAT 2015, Aug 31-Sep 04, 2015, Herceg Novi, Montenegro, Programme and the Book of Abstracts
T1  - Preparation of NdFeB Magnetic Nanoparticles by Surfactant-Assisted High Energy Ball Milling
SP  - 66
EP  - 66
UR  - https://hdl.handle.net/21.15107/rcub_dais_804
ER  - 

@conference{
author = "Lamovec, Jelena and Jović, Vesna and Radovanović, Filip and Ranđelović, Danijela and Radulović, Katarina and Jakšić, Zoran and Vasiljević Radović, Dana",
year = "2015",
abstract = "Improved permanent magnets are essential for emergent applications in electronic and electric devices. Different attempts have been made to produce nanoscale anisotropic rare-earth magnetic powder based on Nd-Fe-B material. Recently, high energy surfactant assisted ball milling has been proven to be an effective technique to produce anisotropic hard magnetic Nd-Fe-B nanoparticles. In this paper we are presenting our experimental results on high energy ball milling in planetary mill "Puverisette 7 premium line" from "Fritsch". Except milling material, there are several variables which influence the milling process for the selected mill type. They are: mechanical properties of the milling media material (bowls, balls, etc.), ball-to-powder ratio (BPR), extent of filling of the milling bowl, milling atmosphere, milling speed and duration, and type of solution and surfactant for wet milling. We are going to give influence of all these parameters on obtained NdFeB magnetic materials with nanosized dimensions starting from Nd2Fe14B HDD (Hydrogenated Disproportionated Desorbed) material. 

Acknowledgements: This work is funded by FP7 project MAG-DRIVE: "New permanent magnets for electric-vehicle drive applications", grant agreement no: 605348.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Seventeenth Annual Conference YUCOMAT 2015, Aug 31-Sep 04, 2015, Herceg Novi, Montenegro, Programme and the Book of Abstracts",
title = "Preparation of NdFeB Magnetic Nanoparticles by Surfactant-Assisted High Energy Ball Milling",
pages = "66-66",
url = "https://hdl.handle.net/21.15107/rcub_dais_804"
}

Lamovec, J., Jović, V., Radovanović, F., Ranđelović, D., Radulović, K., Jakšić, Z.,& Vasiljević Radović, D.. (2015). Preparation of NdFeB Magnetic Nanoparticles by Surfactant-Assisted High Energy Ball Milling. in Seventeenth Annual Conference YUCOMAT 2015, Aug 31-Sep 04, 2015, Herceg Novi, Montenegro, Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 66-66.
https://hdl.handle.net/21.15107/rcub_dais_804

Lamovec J, Jović V, Radovanović F, Ranđelović D, Radulović K, Jakšić Z, Vasiljević Radović D. Preparation of NdFeB Magnetic Nanoparticles by Surfactant-Assisted High Energy Ball Milling. in Seventeenth Annual Conference YUCOMAT 2015, Aug 31-Sep 04, 2015, Herceg Novi, Montenegro, Programme and the Book of Abstracts. 2015;:66-66.
https://hdl.handle.net/21.15107/rcub_dais_804 .

Lamovec, Jelena, Jović, Vesna, Radovanović, Filip, Ranđelović, Danijela, Radulović, Katarina, Jakšić, Zoran, Vasiljević Radović, Dana, "Preparation of NdFeB Magnetic Nanoparticles by Surfactant-Assisted High Energy Ball Milling" in Seventeenth Annual Conference YUCOMAT 2015, Aug 31-Sep 04, 2015, Herceg Novi, Montenegro, Programme and the Book of Abstracts (2015):66-66,
https://hdl.handle.net/21.15107/rcub_dais_804 .