TY  - JOUR
AU  - Ignjatović, Nenad
AU  - Ajduković, Zorica
AU  - Savić, Vojin
AU  - Najman, Stevo
AU  - Mihailović, Dragan
AU  - Vasiljević, Perica
AU  - Stojanović, Zoran S.
AU  - Uskoković, Vuk
AU  - Uskoković, Dragan
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/353
AB  - Indications exist that paramagnetic calcium phosphates may be able to promote regeneration of bone faster than their regular, diamagnetic counterparts. In this study, analyzed was the influence of paramagnetic cobalt-substituted hydroxyapatite nanoparticles on osteoporotic alveolar bone regeneration in rats. Simultaneously, biocompatibility of the material was tested in vitro, on osteoblastic MC3T3-E1 and epithelial Caco-2 cells in culture. The material was shown to be biocompatible and nontoxic when added to epithelial monolayers in vitro, while it caused a substantial decrease in the cell viability as well as deformation of the cytoskeleton and cell morphology when incubated with the osteoblastic cells. In the course of 6 months after the implantation of the material containing different amounts of cobalt, ranging from 5 to 12 wt%, in the osteoporotic alveolar bone of the lower jaw, the following parameters were investigated: histopathological parameters, alkaline phosphatase and alveolar bone density. The best result in terms of osteoporotic bone tissue regeneration was observed for hydroxyapatite nanoparticles with the largest content of cobalt ions. The histological analysis showed a high level of reparatory ability of the nanoparticulate material implanted in the bone defect, paralleled by a corresponding increase in the alveolar bone density. The combined effect of growth factors from autologous plasma admixed to cobalt-substituted hydroxyapatite was furthermore shown to have a crucial effect on the augmented osteoporotic bone regeneration upon the implantation of the biomaterial investigated in this study.
PB  - Springer
T2  - Journal of Materials Science: Materials in Medicine
T1  - Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones
SP  - 343
EP  - 354
VL  - 24
IS  - 2
DO  - 10.1007/s10856-012-4793-1
UR  - https://hdl.handle.net/21.15107/rcub_dais_353
ER  - 

@article{
author = "Ignjatović, Nenad and Ajduković, Zorica and Savić, Vojin and Najman, Stevo and Mihailović, Dragan and Vasiljević, Perica and Stojanović, Zoran S. and Uskoković, Vuk and Uskoković, Dragan",
year = "2013",
abstract = "Indications exist that paramagnetic calcium phosphates may be able to promote regeneration of bone faster than their regular, diamagnetic counterparts. In this study, analyzed was the influence of paramagnetic cobalt-substituted hydroxyapatite nanoparticles on osteoporotic alveolar bone regeneration in rats. Simultaneously, biocompatibility of the material was tested in vitro, on osteoblastic MC3T3-E1 and epithelial Caco-2 cells in culture. The material was shown to be biocompatible and nontoxic when added to epithelial monolayers in vitro, while it caused a substantial decrease in the cell viability as well as deformation of the cytoskeleton and cell morphology when incubated with the osteoblastic cells. In the course of 6 months after the implantation of the material containing different amounts of cobalt, ranging from 5 to 12 wt%, in the osteoporotic alveolar bone of the lower jaw, the following parameters were investigated: histopathological parameters, alkaline phosphatase and alveolar bone density. The best result in terms of osteoporotic bone tissue regeneration was observed for hydroxyapatite nanoparticles with the largest content of cobalt ions. The histological analysis showed a high level of reparatory ability of the nanoparticulate material implanted in the bone defect, paralleled by a corresponding increase in the alveolar bone density. The combined effect of growth factors from autologous plasma admixed to cobalt-substituted hydroxyapatite was furthermore shown to have a crucial effect on the augmented osteoporotic bone regeneration upon the implantation of the biomaterial investigated in this study.",
publisher = "Springer",
journal = "Journal of Materials Science: Materials in Medicine",
title = "Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones",
pages = "343-354",
volume = "24",
number = "2",
doi = "10.1007/s10856-012-4793-1",
url = "https://hdl.handle.net/21.15107/rcub_dais_353"
}

Ignjatović, N., Ajduković, Z., Savić, V., Najman, S., Mihailović, D., Vasiljević, P., Stojanović, Z. S., Uskoković, V.,& Uskoković, D.. (2013). Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones. in Journal of Materials Science: Materials in Medicine
Springer., 24(2), 343-354.
https://doi.org/10.1007/s10856-012-4793-1
https://hdl.handle.net/21.15107/rcub_dais_353

Ignjatović N, Ajduković Z, Savić V, Najman S, Mihailović D, Vasiljević P, Stojanović ZS, Uskoković V, Uskoković D. Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones. in Journal of Materials Science: Materials in Medicine. 2013;24(2):343-354.
doi:10.1007/s10856-012-4793-1
https://hdl.handle.net/21.15107/rcub_dais_353 .

Ignjatović, Nenad, Ajduković, Zorica, Savić, Vojin, Najman, Stevo, Mihailović, Dragan, Vasiljević, Perica, Stojanović, Zoran S., Uskoković, Vuk, Uskoković, Dragan, "Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones" in Journal of Materials Science: Materials in Medicine, 24, no. 2 (2013):343-354,
https://doi.org/10.1007/s10856-012-4793-1 .,
https://hdl.handle.net/21.15107/rcub_dais_353 .

TY  - JOUR
AU  - Ignjatović, Nenad
AU  - Ajduković, Zorica
AU  - Savić, Vojin
AU  - Najman, Stevo
AU  - Mihailović, Dragan
AU  - Vasiljević, Perica
AU  - Stojanović, Zoran S.
AU  - Uskoković, Vuk
AU  - Uskoković, Dragan
PY  - 2013
UR  - https://dais.sanu.ac.rs/123456789/572
AB  - Indications exist that paramagnetic calcium phosphates may be able to promote regeneration of bone faster than their regular, diamagnetic counterparts. In this study, analyzed was the influence of paramagnetic cobalt-substituted hydroxyapatite nanoparticles on osteoporotic alveolar bone regeneration in rats. Simultaneously, biocompatibility of the material was tested in vitro, on osteoblastic MC3T3-E1 and epithelial Caco-2 cells in culture. The material was shown to be biocompatible and nontoxic when added to epithelial monolayers in vitro, while it caused a substantial decrease in the cell viability as well as deformation of the cytoskeleton and cell morphology when incubated with the osteoblastic cells. In the course of 6 months after the implantation of the material containing different amounts of cobalt, ranging from 5 to 12 wt%, in the osteoporotic alveolar bone of the lower jaw, the following parameters were investigated: histopathological parameters, alkaline phosphatase and alveolar bone density. The best result in terms of osteoporotic bone tissue regeneration was observed for hydroxyapatite nanoparticles with the largest content of cobalt ions. The histological analysis showed a high level of reparatory ability of the nanoparticulate material implanted in the bone defect, paralleled by a corresponding increase in the alveolar bone density. The combined effect of growth factors from autologous plasma admixed to cobalt-substituted hydroxyapatite was furthermore shown to have a crucial effect on the augmented osteoporotic bone regeneration upon the implantation of the biomaterial investigated in this study.
T2  - Journal of Materials Science: Materials in Medicine
T1  - Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones
SP  - 343
EP  - 354
VL  - 24
IS  - 2
DO  - 10.1007/s10856-012-4793-1
UR  - https://hdl.handle.net/21.15107/rcub_dais_572
ER  - 

@article{
author = "Ignjatović, Nenad and Ajduković, Zorica and Savić, Vojin and Najman, Stevo and Mihailović, Dragan and Vasiljević, Perica and Stojanović, Zoran S. and Uskoković, Vuk and Uskoković, Dragan",
year = "2013",
abstract = "Indications exist that paramagnetic calcium phosphates may be able to promote regeneration of bone faster than their regular, diamagnetic counterparts. In this study, analyzed was the influence of paramagnetic cobalt-substituted hydroxyapatite nanoparticles on osteoporotic alveolar bone regeneration in rats. Simultaneously, biocompatibility of the material was tested in vitro, on osteoblastic MC3T3-E1 and epithelial Caco-2 cells in culture. The material was shown to be biocompatible and nontoxic when added to epithelial monolayers in vitro, while it caused a substantial decrease in the cell viability as well as deformation of the cytoskeleton and cell morphology when incubated with the osteoblastic cells. In the course of 6 months after the implantation of the material containing different amounts of cobalt, ranging from 5 to 12 wt%, in the osteoporotic alveolar bone of the lower jaw, the following parameters were investigated: histopathological parameters, alkaline phosphatase and alveolar bone density. The best result in terms of osteoporotic bone tissue regeneration was observed for hydroxyapatite nanoparticles with the largest content of cobalt ions. The histological analysis showed a high level of reparatory ability of the nanoparticulate material implanted in the bone defect, paralleled by a corresponding increase in the alveolar bone density. The combined effect of growth factors from autologous plasma admixed to cobalt-substituted hydroxyapatite was furthermore shown to have a crucial effect on the augmented osteoporotic bone regeneration upon the implantation of the biomaterial investigated in this study.",
journal = "Journal of Materials Science: Materials in Medicine",
title = "Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones",
pages = "343-354",
volume = "24",
number = "2",
doi = "10.1007/s10856-012-4793-1",
url = "https://hdl.handle.net/21.15107/rcub_dais_572"
}

Ignjatović, N., Ajduković, Z., Savić, V., Najman, S., Mihailović, D., Vasiljević, P., Stojanović, Z. S., Uskoković, V.,& Uskoković, D.. (2013). Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones. in Journal of Materials Science: Materials in Medicine, 24(2), 343-354.
https://doi.org/10.1007/s10856-012-4793-1
https://hdl.handle.net/21.15107/rcub_dais_572

Ignjatović N, Ajduković Z, Savić V, Najman S, Mihailović D, Vasiljević P, Stojanović ZS, Uskoković V, Uskoković D. Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones. in Journal of Materials Science: Materials in Medicine. 2013;24(2):343-354.
doi:10.1007/s10856-012-4793-1
https://hdl.handle.net/21.15107/rcub_dais_572 .

Ignjatović, Nenad, Ajduković, Zorica, Savić, Vojin, Najman, Stevo, Mihailović, Dragan, Vasiljević, Perica, Stojanović, Zoran S., Uskoković, Vuk, Uskoković, Dragan, "Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones" in Journal of Materials Science: Materials in Medicine, 24, no. 2 (2013):343-354,
https://doi.org/10.1007/s10856-012-4793-1 .,
https://hdl.handle.net/21.15107/rcub_dais_572 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Petrović, Milica B.
AU  - Ignjatović, Nenad
AU  - Savić, Vojin
AU  - Mihailović, Dragan
AU  - Uskoković, Dragan
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/454
AB  - Increased life expectancy in developed countries leads to an increase in the number of musculoskeletal disorders, such as osteoporosis, oasteoratritis thus compromising good dental treatment. There are many drug delivery systems based on hydroxyapatite used in bone tissue regeneration. Vitamin D3 is osteodiferentiation factor which regulates bone formation by increasing osteoblast differentiation and bone mineralization. The aim of this study is to examine new multifunctional nanoparticulate system for local delivery of active form of vitamin D3 by biochemical blood marker and histochemical analysis. The research was carried out on female Westar rats, aged 6-8 weeks, which have been implanted biomaterials in the artificial bone defect. Biochemical markers of osteogenesis were statistically significant after only 6 weeks of implantation. ALP activity in bone tissue was showed by histochemical analysis as well as high level reparatory skills. Local realized Vitamin D3 contribute to bone formation by increasing osteoblast differentiation and bone mineralization.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - Regeneration bone tissue by new nanoparticules system based on hydroxiapatite as systems for local delivery of vitamin D3
SP  - 121
EP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_dais_454
ER  - 

@conference{
author = "Ajduković, Zorica and Petrović, Milica B. and Ignjatović, Nenad and Savić, Vojin and Mihailović, Dragan and Uskoković, Dragan",
year = "2012",
abstract = "Increased life expectancy in developed countries leads to an increase in the number of musculoskeletal disorders, such as osteoporosis, oasteoratritis thus compromising good dental treatment. There are many drug delivery systems based on hydroxyapatite used in bone tissue regeneration. Vitamin D3 is osteodiferentiation factor which regulates bone formation by increasing osteoblast differentiation and bone mineralization. The aim of this study is to examine new multifunctional nanoparticulate system for local delivery of active form of vitamin D3 by biochemical blood marker and histochemical analysis. The research was carried out on female Westar rats, aged 6-8 weeks, which have been implanted biomaterials in the artificial bone defect. Biochemical markers of osteogenesis were statistically significant after only 6 weeks of implantation. ALP activity in bone tissue was showed by histochemical analysis as well as high level reparatory skills. Local realized Vitamin D3 contribute to bone formation by increasing osteoblast differentiation and bone mineralization.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "Regeneration bone tissue by new nanoparticules system based on hydroxiapatite as systems for local delivery of vitamin D3",
pages = "121-121",
url = "https://hdl.handle.net/21.15107/rcub_dais_454"
}

Ajduković, Z., Petrović, M. B., Ignjatović, N., Savić, V., Mihailović, D.,& Uskoković, D.. (2012). Regeneration bone tissue by new nanoparticules system based on hydroxiapatite as systems for local delivery of vitamin D3. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 121-121.
https://hdl.handle.net/21.15107/rcub_dais_454

Ajduković Z, Petrović MB, Ignjatović N, Savić V, Mihailović D, Uskoković D. Regeneration bone tissue by new nanoparticules system based on hydroxiapatite as systems for local delivery of vitamin D3. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:121-121.
https://hdl.handle.net/21.15107/rcub_dais_454 .

Ajduković, Zorica, Petrović, Milica B., Ignjatović, Nenad, Savić, Vojin, Mihailović, Dragan, Uskoković, Dragan, "Regeneration bone tissue by new nanoparticules system based on hydroxiapatite as systems for local delivery of vitamin D3" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):121-121,
https://hdl.handle.net/21.15107/rcub_dais_454 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Ignjatović, Nenad
AU  - Savić, Vojin
AU  - Najman, Stevo
AU  - Mihailović, Dragan
AU  - Rajković, J.
AU  - Petrović, N.
AU  - Uskoković, Dragan
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/455
AB  - In recent years, calcium hydroxyapatite (HAp) and its substituents are increasingly used in dentistry and medicine. The influence of nanoparticles Ca / Co-HAp in strengthening weak osteoporotic bone jaw tegmenta was tested in an experimental model. The study was conducted on Wistar soy rats, aged 6-8 weeks. The biomaterial was implanted in the osteoporoticly weakened mandible of these animals. The best results in the strengthening of the lower jaw bone tegmenta were achieved 24 weeks after implantation of hydroxyapatite nanoparticles in which the calcium ion was substituted with 12% of cobalt ions. Histochemical parameters of bone synthesis were in a statistically significant increase. SEM analysis showed a high degree of osteogenetic ability of nano-particulate material implanted in the bone defect.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - Hydroxyapatite and hydroxyapatite substituents in strengthening of the jaw bone tegmenta
SP  - 121
EP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_dais_455
ER  - 

@conference{
author = "Ajduković, Zorica and Ignjatović, Nenad and Savić, Vojin and Najman, Stevo and Mihailović, Dragan and Rajković, J. and Petrović, N. and Uskoković, Dragan",
year = "2012",
abstract = "In recent years, calcium hydroxyapatite (HAp) and its substituents are increasingly used in dentistry and medicine. The influence of nanoparticles Ca / Co-HAp in strengthening weak osteoporotic bone jaw tegmenta was tested in an experimental model. The study was conducted on Wistar soy rats, aged 6-8 weeks. The biomaterial was implanted in the osteoporoticly weakened mandible of these animals. The best results in the strengthening of the lower jaw bone tegmenta were achieved 24 weeks after implantation of hydroxyapatite nanoparticles in which the calcium ion was substituted with 12% of cobalt ions. Histochemical parameters of bone synthesis were in a statistically significant increase. SEM analysis showed a high degree of osteogenetic ability of nano-particulate material implanted in the bone defect.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "Hydroxyapatite and hydroxyapatite substituents in strengthening of the jaw bone tegmenta",
pages = "121-121",
url = "https://hdl.handle.net/21.15107/rcub_dais_455"
}

Ajduković, Z., Ignjatović, N., Savić, V., Najman, S., Mihailović, D., Rajković, J., Petrović, N.,& Uskoković, D.. (2012). Hydroxyapatite and hydroxyapatite substituents in strengthening of the jaw bone tegmenta. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 121-121.
https://hdl.handle.net/21.15107/rcub_dais_455

Ajduković Z, Ignjatović N, Savić V, Najman S, Mihailović D, Rajković J, Petrović N, Uskoković D. Hydroxyapatite and hydroxyapatite substituents in strengthening of the jaw bone tegmenta. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:121-121.
https://hdl.handle.net/21.15107/rcub_dais_455 .

Ajduković, Zorica, Ignjatović, Nenad, Savić, Vojin, Najman, Stevo, Mihailović, Dragan, Rajković, J., Petrović, N., Uskoković, Dragan, "Hydroxyapatite and hydroxyapatite substituents in strengthening of the jaw bone tegmenta" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):121-121,
https://hdl.handle.net/21.15107/rcub_dais_455 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Petrović, Milica B.
AU  - Milićević, Jelena
AU  - Đorđević, Nadica
AU  - Ignjatović, Nenad
AU  - Savić, Vojin
AU  - Najman, Stevo
AU  - Mihailović, Dragan
AU  - Vasiljević, Perica
AU  - Uskoković, Dragan
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/674
AB  - One of the trends in the treatment of reduced bone density is in oral implantology through the use of new biomaterials with paramagnetic properties. In this in vivo study the effect of Ca /Co-HAp nanoparticles (calcium/cobalt-hydroxiapatite) in the regeneration of the reduced alveolar bone density in experimental animals was examined by analyzing both the biochemical and histochemical markers and through analysis of alveolar bone density. The research was carried out on female Westar rats, aged 6-8 weeks, whom have been implanted nanobiomaterial in reduced alveolar bone density. Good results in regeneration of reduced bone density were achieved in six weeks after implantation of the nanoparticles with paramagnetic properties. Biochemical markers of osteogenesis showed statistically significant rise. Histological analysis revealed high level reparatory skills of the biocomposite implanted in the bone defect, while X-ray analyses evidenced rise of bone density. Implantation of Ca/Co-Hap enables rapid new formation, thus becoming the material of choice for accelerated reduced bone density regeneration.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
T1  - Paramagnetic nanoparticles in the regeneration of the reduced alveolar bone density
SP  - 161
EP  - 161
UR  - https://hdl.handle.net/21.15107/rcub_dais_674
ER  - 

@conference{
author = "Ajduković, Zorica and Petrović, Milica B. and Milićević, Jelena and Đorđević, Nadica and Ignjatović, Nenad and Savić, Vojin and Najman, Stevo and Mihailović, Dragan and Vasiljević, Perica and Uskoković, Dragan",
year = "2011",
abstract = "One of the trends in the treatment of reduced bone density is in oral implantology through the use of new biomaterials with paramagnetic properties. In this in vivo study the effect of Ca /Co-HAp nanoparticles (calcium/cobalt-hydroxiapatite) in the regeneration of the reduced alveolar bone density in experimental animals was examined by analyzing both the biochemical and histochemical markers and through analysis of alveolar bone density. The research was carried out on female Westar rats, aged 6-8 weeks, whom have been implanted nanobiomaterial in reduced alveolar bone density. Good results in regeneration of reduced bone density were achieved in six weeks after implantation of the nanoparticles with paramagnetic properties. Biochemical markers of osteogenesis showed statistically significant rise. Histological analysis revealed high level reparatory skills of the biocomposite implanted in the bone defect, while X-ray analyses evidenced rise of bone density. Implantation of Ca/Co-Hap enables rapid new formation, thus becoming the material of choice for accelerated reduced bone density regeneration.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts",
title = "Paramagnetic nanoparticles in the regeneration of the reduced alveolar bone density",
pages = "161-161",
url = "https://hdl.handle.net/21.15107/rcub_dais_674"
}

Ajduković, Z., Petrović, M. B., Milićević, J., Đorđević, N., Ignjatović, N., Savić, V., Najman, S., Mihailović, D., Vasiljević, P.,& Uskoković, D.. (2011). Paramagnetic nanoparticles in the regeneration of the reduced alveolar bone density. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 161-161.
https://hdl.handle.net/21.15107/rcub_dais_674

Ajduković Z, Petrović MB, Milićević J, Đorđević N, Ignjatović N, Savić V, Najman S, Mihailović D, Vasiljević P, Uskoković D. Paramagnetic nanoparticles in the regeneration of the reduced alveolar bone density. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts. 2011;:161-161.
https://hdl.handle.net/21.15107/rcub_dais_674 .

Ajduković, Zorica, Petrović, Milica B., Milićević, Jelena, Đorđević, Nadica, Ignjatović, Nenad, Savić, Vojin, Najman, Stevo, Mihailović, Dragan, Vasiljević, Perica, Uskoković, Dragan, "Paramagnetic nanoparticles in the regeneration of the reduced alveolar bone density" in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts (2011):161-161,
https://hdl.handle.net/21.15107/rcub_dais_674 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Ignjatović, Nenad
AU  - Petrović, Nenad
AU  - Savić, Vojin
AU  - Mihailović, Dragan
AU  - Uskoković, Dragan
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/690
AB  - Systems for targeted delivery of drugs with high affinity for specific organs, tissues, and cells were introduced at the beginning of the twentieth century. Recently, this concept is attracting much attention. These systems have shown most effective in reducing adverse effects of drugs. In recent years, scientists have created a system of nanoparticles for delivery of vitamin D. Special attention is paid to the role of vitamin D in the division and differentiation of osteoblasts and thus, in its role in osteogenesis. In this regard it was interesting to observe the local effects of the active form of vitamin D3 in osteogenesis, as a part of the system for local delivery. These effects were observed on an experimental model. Three types of nanobiomaterial were implanted in the artificially made defects in rats’ mandibular bone. Six weeks after implantation of hydroxyapatite, hydroxyapatite-coated vitamin D3 and hydroxyapatite nanoparticles coated with vitamin D3 mixed with the polymer, the animals were sacrificed, and the samples of mandibular alveolar bone were taken. The samples were adequately prepared and subjected to histopathological analysis. The best results in regeneration of osteoporotic jaw bone were obtained in the experimental group of animals where the implant was hydroxyapatite-coated vitamin D3 mixed with the polymer. The results show that nanobiomaterials with local delivery of active form of vitamin D3, used in this study, may be materials of the future in the area of weakened jaw bone tissue regeneration.
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - Joint effects of vitamin D and nanobiomaterial in the jaw bone regeneration
SP  - 9
EP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_dais_690
ER  - 

@conference{
author = "Ajduković, Zorica and Ignjatović, Nenad and Petrović, Nenad and Savić, Vojin and Mihailović, Dragan and Uskoković, Dragan",
year = "2011",
abstract = "Systems for targeted delivery of drugs with high affinity for specific organs, tissues, and cells were introduced at the beginning of the twentieth century. Recently, this concept is attracting much attention. These systems have shown most effective in reducing adverse effects of drugs. In recent years, scientists have created a system of nanoparticles for delivery of vitamin D. Special attention is paid to the role of vitamin D in the division and differentiation of osteoblasts and thus, in its role in osteogenesis. In this regard it was interesting to observe the local effects of the active form of vitamin D3 in osteogenesis, as a part of the system for local delivery. These effects were observed on an experimental model. Three types of nanobiomaterial were implanted in the artificially made defects in rats’ mandibular bone. Six weeks after implantation of hydroxyapatite, hydroxyapatite-coated vitamin D3 and hydroxyapatite nanoparticles coated with vitamin D3 mixed with the polymer, the animals were sacrificed, and the samples of mandibular alveolar bone were taken. The samples were adequately prepared and subjected to histopathological analysis. The best results in regeneration of osteoporotic jaw bone were obtained in the experimental group of animals where the implant was hydroxyapatite-coated vitamin D3 mixed with the polymer. The results show that nanobiomaterials with local delivery of active form of vitamin D3, used in this study, may be materials of the future in the area of weakened jaw bone tissue regeneration.",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "Joint effects of vitamin D and nanobiomaterial in the jaw bone regeneration",
pages = "9-9",
url = "https://hdl.handle.net/21.15107/rcub_dais_690"
}

Ajduković, Z., Ignjatović, N., Petrović, N., Savić, V., Mihailović, D.,& Uskoković, D.. (2011). Joint effects of vitamin D and nanobiomaterial in the jaw bone regeneration. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts., 9-9.
https://hdl.handle.net/21.15107/rcub_dais_690

Ajduković Z, Ignjatović N, Petrović N, Savić V, Mihailović D, Uskoković D. Joint effects of vitamin D and nanobiomaterial in the jaw bone regeneration. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:9-9.
https://hdl.handle.net/21.15107/rcub_dais_690 .

Ajduković, Zorica, Ignjatović, Nenad, Petrović, Nenad, Savić, Vojin, Mihailović, Dragan, Uskoković, Dragan, "Joint effects of vitamin D and nanobiomaterial in the jaw bone regeneration" in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia (2011):9-9,
https://hdl.handle.net/21.15107/rcub_dais_690 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Petrović, Milica B.
AU  - Milićević, Jelena
AU  - Đorđević, Nadica
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
AU  - Savić, Vojin P.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3446
AB  - This study examined the role of Ca / Co-HAp nanoparticles on time distance in regeneration of osteoporotic alveolar bone in rats by biochemical blood markers analysis (ALP, Ca, Mg, P) and through histochemical analysis. The research was carried out on female Westar rats, aged 6-8 weeks. The obtained results for the biochemical blood markers showed statistically significant rise. Histological analysis revealed high level reparatory skills of the biocomposite implanted in the bone defect as early as in the mineralized tissues. It can be concluded that Ca/Co-HAp stimulates the regeneration of osteoporotic alveolar bone in tested animals as confirmed by the increased levels of biochemical blood markers and through histochemical analysis. Therefore, it can be concluded that Ca/Co-HAp nanocomposite should be choise material in the osteoconstructive processes in the future.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia
T1  - Evaluation compensation of an osteoporotic rat bone with Ca/Co-HAp nanoparticles
SP  - 19
EP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_dais_3446
ER  - 

@conference{
author = "Ajduković, Zorica and Petrović, Milica B. and Milićević, Jelena and Đorđević, Nadica and Ignjatović, Nenad and Uskoković, Dragan and Savić, Vojin P.",
year = "2010",
abstract = "This study examined the role of Ca / Co-HAp nanoparticles on time distance in regeneration of osteoporotic alveolar bone in rats by biochemical blood markers analysis (ALP, Ca, Mg, P) and through histochemical analysis. The research was carried out on female Westar rats, aged 6-8 weeks. The obtained results for the biochemical blood markers showed statistically significant rise. Histological analysis revealed high level reparatory skills of the biocomposite implanted in the bone defect as early as in the mineralized tissues. It can be concluded that Ca/Co-HAp stimulates the regeneration of osteoporotic alveolar bone in tested animals as confirmed by the increased levels of biochemical blood markers and through histochemical analysis. Therefore, it can be concluded that Ca/Co-HAp nanocomposite should be choise material in the osteoconstructive processes in the future.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia",
title = "Evaluation compensation of an osteoporotic rat bone with Ca/Co-HAp nanoparticles",
pages = "19-19",
url = "https://hdl.handle.net/21.15107/rcub_dais_3446"
}

Ajduković, Z., Petrović, M. B., Milićević, J., Đorđević, N., Ignjatović, N., Uskoković, D.,& Savić, V. P.. (2010). Evaluation compensation of an osteoporotic rat bone with Ca/Co-HAp nanoparticles. in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 19-19.
https://hdl.handle.net/21.15107/rcub_dais_3446

Ajduković Z, Petrović MB, Milićević J, Đorđević N, Ignjatović N, Uskoković D, Savić VP. Evaluation compensation of an osteoporotic rat bone with Ca/Co-HAp nanoparticles. in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia. 2010;:19-19.
https://hdl.handle.net/21.15107/rcub_dais_3446 .

Ajduković, Zorica, Petrović, Milica B., Milićević, Jelena, Đorđević, Nadica, Ignjatović, Nenad, Uskoković, Dragan, Savić, Vojin P., "Evaluation compensation of an osteoporotic rat bone with Ca/Co-HAp nanoparticles" in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia (2010):19-19,
https://hdl.handle.net/21.15107/rcub_dais_3446 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Milićević, Jelena
AU  - Petrović, Milica B.
AU  - Đorđević, Nadica
AU  - Mladenović Antić, Snežana
AU  - Kocić, Branislava
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
AU  - Savić, Vojin P.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3444
AB  - Antimicrobial materials based on hydroxyapatite are potentially attractive in a wide variety of medical and stomatological applications. The objective of this paper is to examine antimicrobic activity of cobalt-substituted calcium hydroxyapatite nanopowders and biphased calciumphosphate/ poli-lactide-co-glicolide. The antimicrobial effects of these substances (powders) against two pathogen bacterial strains- Escherichia coli (ATCC 25922) and Staphylococcus aureus (ATCC 25923) were tested by disc diffusion method and quantitative antimicrobial test in liquid medium. It was noted that the inhibition zone of the bacterial cells S. aureus around the sample of the Ca/Co- HAp, was a lot bigger compared to the inhibition zone of bacterial cells E. coli around the sample of the mentioned biomaterial, which means that this material has bigger antimicrobic activity on S. aureus, in relation to E. coli. Quantitative antimicrobial test in liquid medium demonstrate that cobalt-substituted calcium hydroxyapatite samples show viable cells reduction of both tested microorganisms. It may be concluded that nanoparticles of cobalt-substituted calcium hydoxyapatite nano-powders has a satisfactory antimicrobic activity according to the tested bacteria strain.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia
T1  - In vitro evaluation of antimicrobial activity of nano composite biomaterials based on hydroxyapatite
SP  - 18
EP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_dais_3444
ER  - 

@conference{
author = "Ajduković, Zorica and Milićević, Jelena and Petrović, Milica B. and Đorđević, Nadica and Mladenović Antić, Snežana and Kocić, Branislava and Ignjatović, Nenad and Uskoković, Dragan and Savić, Vojin P.",
year = "2010",
abstract = "Antimicrobial materials based on hydroxyapatite are potentially attractive in a wide variety of medical and stomatological applications. The objective of this paper is to examine antimicrobic activity of cobalt-substituted calcium hydroxyapatite nanopowders and biphased calciumphosphate/ poli-lactide-co-glicolide. The antimicrobial effects of these substances (powders) against two pathogen bacterial strains- Escherichia coli (ATCC 25922) and Staphylococcus aureus (ATCC 25923) were tested by disc diffusion method and quantitative antimicrobial test in liquid medium. It was noted that the inhibition zone of the bacterial cells S. aureus around the sample of the Ca/Co- HAp, was a lot bigger compared to the inhibition zone of bacterial cells E. coli around the sample of the mentioned biomaterial, which means that this material has bigger antimicrobic activity on S. aureus, in relation to E. coli. Quantitative antimicrobial test in liquid medium demonstrate that cobalt-substituted calcium hydroxyapatite samples show viable cells reduction of both tested microorganisms. It may be concluded that nanoparticles of cobalt-substituted calcium hydoxyapatite nano-powders has a satisfactory antimicrobic activity according to the tested bacteria strain.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia",
title = "In vitro evaluation of antimicrobial activity of nano composite biomaterials based on hydroxyapatite",
pages = "18-18",
url = "https://hdl.handle.net/21.15107/rcub_dais_3444"
}

Ajduković, Z., Milićević, J., Petrović, M. B., Đorđević, N., Mladenović Antić, S., Kocić, B., Ignjatović, N., Uskoković, D.,& Savić, V. P.. (2010). In vitro evaluation of antimicrobial activity of nano composite biomaterials based on hydroxyapatite. in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 18-18.
https://hdl.handle.net/21.15107/rcub_dais_3444

Ajduković Z, Milićević J, Petrović MB, Đorđević N, Mladenović Antić S, Kocić B, Ignjatović N, Uskoković D, Savić VP. In vitro evaluation of antimicrobial activity of nano composite biomaterials based on hydroxyapatite. in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia. 2010;:18-18.
https://hdl.handle.net/21.15107/rcub_dais_3444 .

Ajduković, Zorica, Milićević, Jelena, Petrović, Milica B., Đorđević, Nadica, Mladenović Antić, Snežana, Kocić, Branislava, Ignjatović, Nenad, Uskoković, Dragan, Savić, Vojin P., "In vitro evaluation of antimicrobial activity of nano composite biomaterials based on hydroxyapatite" in Program and the Book of Abstracts / Ninth Young Researchers Conference Materials Sciences and Engineering, December 20–22, 2010, Belgrade, Serbia (2010):18-18,
https://hdl.handle.net/21.15107/rcub_dais_3444 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Milićević, Jelena
AU  - Petrović, Milica B.
AU  - Đorđević, N.
AU  - Ignjatović, Nenad
AU  - Savić, Vojin P.
AU  - Uskoković, Dragan
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3553
AB  - Antimicrobial materials based on hydroxyapatite are very attractive for wide application in medicine and stomatology. The goal of this work was to test antimicrobial activity of hydroxyapatite nanoparticles Co/Ca- hydroxyapatite and biphasic calcium phosphate/ poly (lactide-co-glycolide) composite biomaterial. Antimicrobial activity of the samples was tested using dilution method and disk diffusion. The results of antimicrobial tests were obtained by determining the reduction percentage the number of bacteria in physiological solution where bacteria cells were exposed to the samples. It can be concluded that synthesized HAp biomaterials have satisfactory antimicrobial activity against tested bacteria strains.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010
T1  - Testing the antimicrobial activity of hydroxyapatite nanoparticles in vitro
SP  - 168
EP  - 168
UR  - https://hdl.handle.net/21.15107/rcub_dais_3553
ER  - 

@conference{
author = "Ajduković, Zorica and Milićević, Jelena and Petrović, Milica B. and Đorđević, N. and Ignjatović, Nenad and Savić, Vojin P. and Uskoković, Dragan",
year = "2010",
abstract = "Antimicrobial materials based on hydroxyapatite are very attractive for wide application in medicine and stomatology. The goal of this work was to test antimicrobial activity of hydroxyapatite nanoparticles Co/Ca- hydroxyapatite and biphasic calcium phosphate/ poly (lactide-co-glycolide) composite biomaterial. Antimicrobial activity of the samples was tested using dilution method and disk diffusion. The results of antimicrobial tests were obtained by determining the reduction percentage the number of bacteria in physiological solution where bacteria cells were exposed to the samples. It can be concluded that synthesized HAp biomaterials have satisfactory antimicrobial activity against tested bacteria strains.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010",
title = "Testing the antimicrobial activity of hydroxyapatite nanoparticles in vitro",
pages = "168-168",
url = "https://hdl.handle.net/21.15107/rcub_dais_3553"
}

Ajduković, Z., Milićević, J., Petrović, M. B., Đorđević, N., Ignjatović, N., Savić, V. P.,& Uskoković, D.. (2010). Testing the antimicrobial activity of hydroxyapatite nanoparticles in vitro. in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010
Belgrade : Institute of Technical Sciences of SASA., 168-168.
https://hdl.handle.net/21.15107/rcub_dais_3553

Ajduković Z, Milićević J, Petrović MB, Đorđević N, Ignjatović N, Savić VP, Uskoković D. Testing the antimicrobial activity of hydroxyapatite nanoparticles in vitro. in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010. 2010;:168-168.
https://hdl.handle.net/21.15107/rcub_dais_3553 .

Ajduković, Zorica, Milićević, Jelena, Petrović, Milica B., Đorđević, N., Ignjatović, Nenad, Savić, Vojin P., Uskoković, Dragan, "Testing the antimicrobial activity of hydroxyapatite nanoparticles in vitro" in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010 (2010):168-168,
https://hdl.handle.net/21.15107/rcub_dais_3553 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Petrović, Milica B.
AU  - Milićević, Jelena
AU  - Đorđević, N.
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
AU  - Savić, Vojin
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3552
AB  - One of the prerequisites for a good prosthetic rehabilitation is well preserved bone tissue. However, osteoporosis as a modern age disease often compromises a good dental treatment. Oral implantology offers a solution through the use of various biomaterials. Most researchers focus on the synthesis of the nanomaterials with magnetic and paramagnetic properties. The aim of this study is to examine the role of Ca / Co-HAp nanoparticles in the regeneration of the osteoporotic alveolar bone in experimental animals by analyzing the biochemical blood markers (ALP, Ca, Mg, and P) and through histochemical analysis. The research was carried out on female Westar rats, aged 6-8 weeks. The obtained results for the biochemical blood markers showed statistically significant rise. Histological analysis revealed high level reparatory skills of the biocomposite implanted in the bone defect as early as in the 6th week of the experiment as well as an increased alkaline phosphatase activity in the mineralized tissues. The implantation of the biomaterials facilitates osteogenesis, justifying their use in the accelerated regeneration treatment of the osteoporotic alveolar bone.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010
T1  - Histochemical observation and the analysis of biochemical bone regeneration markers in treatment of an osteoporotic rat bone with Ca/Co-HAp nanoparticles
SP  - 167
EP  - 167
UR  - https://hdl.handle.net/21.15107/rcub_dais_3552
ER  - 

@conference{
author = "Ajduković, Zorica and Petrović, Milica B. and Milićević, Jelena and Đorđević, N. and Ignjatović, Nenad and Uskoković, Dragan and Savić, Vojin",
year = "2010",
abstract = "One of the prerequisites for a good prosthetic rehabilitation is well preserved bone tissue. However, osteoporosis as a modern age disease often compromises a good dental treatment. Oral implantology offers a solution through the use of various biomaterials. Most researchers focus on the synthesis of the nanomaterials with magnetic and paramagnetic properties. The aim of this study is to examine the role of Ca / Co-HAp nanoparticles in the regeneration of the osteoporotic alveolar bone in experimental animals by analyzing the biochemical blood markers (ALP, Ca, Mg, and P) and through histochemical analysis. The research was carried out on female Westar rats, aged 6-8 weeks. The obtained results for the biochemical blood markers showed statistically significant rise. Histological analysis revealed high level reparatory skills of the biocomposite implanted in the bone defect as early as in the 6th week of the experiment as well as an increased alkaline phosphatase activity in the mineralized tissues. The implantation of the biomaterials facilitates osteogenesis, justifying their use in the accelerated regeneration treatment of the osteoporotic alveolar bone.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010",
title = "Histochemical observation and the analysis of biochemical bone regeneration markers in treatment of an osteoporotic rat bone with Ca/Co-HAp nanoparticles",
pages = "167-167",
url = "https://hdl.handle.net/21.15107/rcub_dais_3552"
}

Ajduković, Z., Petrović, M. B., Milićević, J., Đorđević, N., Ignjatović, N., Uskoković, D.,& Savić, V.. (2010). Histochemical observation and the analysis of biochemical bone regeneration markers in treatment of an osteoporotic rat bone with Ca/Co-HAp nanoparticles. in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010
Belgrade : Institute of Technical Sciences of SASA., 167-167.
https://hdl.handle.net/21.15107/rcub_dais_3552

Ajduković Z, Petrović MB, Milićević J, Đorđević N, Ignjatović N, Uskoković D, Savić V. Histochemical observation and the analysis of biochemical bone regeneration markers in treatment of an osteoporotic rat bone with Ca/Co-HAp nanoparticles. in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010. 2010;:167-167.
https://hdl.handle.net/21.15107/rcub_dais_3552 .

Ajduković, Zorica, Petrović, Milica B., Milićević, Jelena, Đorđević, N., Ignjatović, Nenad, Uskoković, Dragan, Savić, Vojin, "Histochemical observation and the analysis of biochemical bone regeneration markers in treatment of an osteoporotic rat bone with Ca/Co-HAp nanoparticles" in Programme and The Book of Abstracts / Twelfth Annual Conference YUCOMAT 2010, Herceg Novi, September 6–10, 2010 (2010):167-167,
https://hdl.handle.net/21.15107/rcub_dais_3552 .

TY  - JOUR
AU  - Ignjatović, Nenad
AU  - Ajduković, Zorica
AU  - Savić, Vojin. P.
AU  - Uskoković, Dragan
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3419
AB  - In this article, synthesis and application of calcium phosphate/poly-DL- lactide-co-glycolide (CP/PLGA) composite biomaterial in particulate form, in which each CP granule/particle is coated with PLGA, are described. Two types of the particulate material having different particle sizes were synthesized: one with an average particle diameter between 150 and 250 μm (micron-sized particles, MPs) and the other with an average particle diameter smaller than 50 nm (nanoparticles, NPs). A comparative in vivo analysis was done by reconstructing defects in osteoporotic alveolar bones using both composites. The material, CP granules/particles covered with polymer, was characterized using X-ray structural analysis, scanning electron microscopy, and atomic force microscopy. Changes in reparatory functions of tissues affected by osteoporosis were examined in mice in vivo, using these two kinds of composite materials, with and without autologous plasma. Having defined the target segment, histomorphometric parameters - bone area fraction, area, and mean density - were determined. The best results in the regeneration and recuperation of alveolar bone damaged by osteoporosis were achieved with the implantation of a mixture of nanoparticulate CP/PLGA composite and autologous plasma. After the implantation of microparticulate CP/PLGA, in the form of granules, mixed with autologous plasma, into an artificial defect in alveolar bone, new bone formation was also observed, although its formation rate was slower. © 2010 Wiley Periodicals, Inc.
PB  - Hoboken, NJ : John Wiley & Sons
T2  - Journal of Biomedical Materials Research - Part B Applied Biomaterials
T1  - Size effect of calcium phosphate coated with poly-DL-lactideco-glycolide on healing processes in bone reconstruction
SP  - 108
EP  - 117
VL  - 94
IS  - 1
DO  - 10.1002/jbm.b.31630
UR  - https://hdl.handle.net/21.15107/rcub_dais_3419
ER  - 

@article{
author = "Ignjatović, Nenad and Ajduković, Zorica and Savić, Vojin. P. and Uskoković, Dragan",
year = "2010",
abstract = "In this article, synthesis and application of calcium phosphate/poly-DL- lactide-co-glycolide (CP/PLGA) composite biomaterial in particulate form, in which each CP granule/particle is coated with PLGA, are described. Two types of the particulate material having different particle sizes were synthesized: one with an average particle diameter between 150 and 250 μm (micron-sized particles, MPs) and the other with an average particle diameter smaller than 50 nm (nanoparticles, NPs). A comparative in vivo analysis was done by reconstructing defects in osteoporotic alveolar bones using both composites. The material, CP granules/particles covered with polymer, was characterized using X-ray structural analysis, scanning electron microscopy, and atomic force microscopy. Changes in reparatory functions of tissues affected by osteoporosis were examined in mice in vivo, using these two kinds of composite materials, with and without autologous plasma. Having defined the target segment, histomorphometric parameters - bone area fraction, area, and mean density - were determined. The best results in the regeneration and recuperation of alveolar bone damaged by osteoporosis were achieved with the implantation of a mixture of nanoparticulate CP/PLGA composite and autologous plasma. After the implantation of microparticulate CP/PLGA, in the form of granules, mixed with autologous plasma, into an artificial defect in alveolar bone, new bone formation was also observed, although its formation rate was slower. © 2010 Wiley Periodicals, Inc.",
publisher = "Hoboken, NJ : John Wiley & Sons",
journal = "Journal of Biomedical Materials Research - Part B Applied Biomaterials",
title = "Size effect of calcium phosphate coated with poly-DL-lactideco-glycolide on healing processes in bone reconstruction",
pages = "108-117",
volume = "94",
number = "1",
doi = "10.1002/jbm.b.31630",
url = "https://hdl.handle.net/21.15107/rcub_dais_3419"
}

Ignjatović, N., Ajduković, Z., Savić, Vojin. P.,& Uskoković, D.. (2010). Size effect of calcium phosphate coated with poly-DL-lactideco-glycolide on healing processes in bone reconstruction. in Journal of Biomedical Materials Research - Part B Applied Biomaterials
Hoboken, NJ : John Wiley & Sons., 94(1), 108-117.
https://doi.org/10.1002/jbm.b.31630
https://hdl.handle.net/21.15107/rcub_dais_3419

Ignjatović N, Ajduković Z, Savić VP, Uskoković D. Size effect of calcium phosphate coated with poly-DL-lactideco-glycolide on healing processes in bone reconstruction. in Journal of Biomedical Materials Research - Part B Applied Biomaterials. 2010;94(1):108-117.
doi:10.1002/jbm.b.31630
https://hdl.handle.net/21.15107/rcub_dais_3419 .

Ignjatović, Nenad, Ajduković, Zorica, Savić, Vojin. P., Uskoković, Dragan, "Size effect of calcium phosphate coated with poly-DL-lactideco-glycolide on healing processes in bone reconstruction" in Journal of Biomedical Materials Research - Part B Applied Biomaterials, 94, no. 1 (2010):108-117,
https://doi.org/10.1002/jbm.b.31630 .,
https://hdl.handle.net/21.15107/rcub_dais_3419 .

TY  - JOUR
AU  - Vasiljević, Perica
AU  - Najman, Stevo
AU  - Đorđević, Ljubiša
AU  - Savić, Vojin P.
AU  - Vukelić, Marija Đ.
AU  - Živanov Čurlis, Jelena Z.
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2009
UR  - http://www.ncbi.nlm.nih.gov/pubmed/0367-598X0904301V
UR  - https://dais.sanu.ac.rs/123456789/3362
AB  - Bone tissue reconstruction and reparation is a big challenge in medicine. Biocomposite materials based on hidroxyapatite are widely used in reparation of bone defects. Adult bone marrow-derived stem cells may be considered in two categories: hematopoietic stem cells (HSC) from the bone marrow and mesenchymal stem cells from the bone marrow stroma (BMSC). HSC and BMSC do not only coexist in one organ, but functionally cooperate. BMSC have a critical role in the formation of hematopoietic microenvironment (HME). The aim of this study was to investigate the interactions between bone marrow cells and biocomposites based on HAp/PLLA (hidroxyapatite/poly-L-lactide) after subcutaneous implantation in Balb/c mice. In that purpose, bone marrow cells of Balb/c mice were seeded in HAp/PLLA tubes (15 mm×1,5 mm). The HAp/PLLA tubes with BMC was subcutaneously implanted with a needle into the intrascapsular region of the mouse. Implants were extracted after 2, 6 and 12 weeks. In implants after 2 and 6 weeks we found angiogenesis, collagenogenesis and new bone. Ectopic hematopoiesis was seen in implants after 12 weeks from implantation. As a good scaffold in the role of supporting osteogenesis and hematopoiesis, biocomposites HAp/PLLA can be good bone substitute materials in the bone reparation process. These results showed that the HAp/PLLA scaffold owned biological properties comparable to natural bone.
AB  - Ispitivana je biofunkcionalnost biokompozita hidroksiapatit/poli-L-laktida (HAp/ /PLLA) kao matrice za osteogenezu i hematopoezu posle subkutane implantacije singenim miševima Balb/c. HAp/PLLA oblikovan je u cevčice (15 mm×1,5 mm) koje su napunjene ćelijama koštane srži miša, a zatim implantirane. Kontrole su bile prokuvane tibije i femuri napunjene na isti način. Implanti su ekstrahovani posle 2, 6 i 12 nedelja i analizirani patohistološki. Angiogeneza i osteogeneza se vide već posle dve nedelje na implantima, što je izraženije na kostima. Vrlo izražena hematopoeza u implantima oba tipa se vidi posle dvanaest nedelja. HAp/PLLA može poslužiti kao matrica za ektopičnu osteogenezu i hematopoezu.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Ectopic osteogenesis and hematopoiesis after implantantion of bone marrow cells seeded on HAP/PLLA scaffold
T1  - Ektopična osteogeneza i hematopoeza iz implantiranih ćelija koštane srži na matrici od biokompozita HAP/PLLA
SP  - 301
EP  - 307
VL  - 63
IS  - 4
DO  - 10.2298/HEMIND0904301V
UR  - https://hdl.handle.net/21.15107/rcub_dais_3362
ER  - 

@article{
author = "Vasiljević, Perica and Najman, Stevo and Đorđević, Ljubiša and Savić, Vojin P. and Vukelić, Marija Đ. and Živanov Čurlis, Jelena Z. and Ignjatović, Nenad and Uskoković, Dragan",
year = "2009",
abstract = "Bone tissue reconstruction and reparation is a big challenge in medicine. Biocomposite materials based on hidroxyapatite are widely used in reparation of bone defects. Adult bone marrow-derived stem cells may be considered in two categories: hematopoietic stem cells (HSC) from the bone marrow and mesenchymal stem cells from the bone marrow stroma (BMSC). HSC and BMSC do not only coexist in one organ, but functionally cooperate. BMSC have a critical role in the formation of hematopoietic microenvironment (HME). The aim of this study was to investigate the interactions between bone marrow cells and biocomposites based on HAp/PLLA (hidroxyapatite/poly-L-lactide) after subcutaneous implantation in Balb/c mice. In that purpose, bone marrow cells of Balb/c mice were seeded in HAp/PLLA tubes (15 mm×1,5 mm). The HAp/PLLA tubes with BMC was subcutaneously implanted with a needle into the intrascapsular region of the mouse. Implants were extracted after 2, 6 and 12 weeks. In implants after 2 and 6 weeks we found angiogenesis, collagenogenesis and new bone. Ectopic hematopoiesis was seen in implants after 12 weeks from implantation. As a good scaffold in the role of supporting osteogenesis and hematopoiesis, biocomposites HAp/PLLA can be good bone substitute materials in the bone reparation process. These results showed that the HAp/PLLA scaffold owned biological properties comparable to natural bone., Ispitivana je biofunkcionalnost biokompozita hidroksiapatit/poli-L-laktida (HAp/ /PLLA) kao matrice za osteogenezu i hematopoezu posle subkutane implantacije singenim miševima Balb/c. HAp/PLLA oblikovan je u cevčice (15 mm×1,5 mm) koje su napunjene ćelijama koštane srži miša, a zatim implantirane. Kontrole su bile prokuvane tibije i femuri napunjene na isti način. Implanti su ekstrahovani posle 2, 6 i 12 nedelja i analizirani patohistološki. Angiogeneza i osteogeneza se vide već posle dve nedelje na implantima, što je izraženije na kostima. Vrlo izražena hematopoeza u implantima oba tipa se vidi posle dvanaest nedelja. HAp/PLLA može poslužiti kao matrica za ektopičnu osteogenezu i hematopoezu.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Ectopic osteogenesis and hematopoiesis after implantantion of bone marrow cells seeded on HAP/PLLA scaffold, Ektopična osteogeneza i hematopoeza iz implantiranih ćelija koštane srži na matrici od biokompozita HAP/PLLA",
pages = "301-307",
volume = "63",
number = "4",
doi = "10.2298/HEMIND0904301V",
url = "https://hdl.handle.net/21.15107/rcub_dais_3362"
}

Vasiljević, P., Najman, S., Đorđević, L., Savić, V. P., Vukelić, M. Đ., Živanov Čurlis, J. Z., Ignjatović, N.,& Uskoković, D.. (2009). Ectopic osteogenesis and hematopoiesis after implantantion of bone marrow cells seeded on HAP/PLLA scaffold. in Hemijska industrija
Belgrade : Association of the Chemical Engineers of Serbia., 63(4), 301-307.
https://doi.org/10.2298/HEMIND0904301V
https://hdl.handle.net/21.15107/rcub_dais_3362

Vasiljević P, Najman S, Đorđević L, Savić VP, Vukelić MĐ, Živanov Čurlis JZ, Ignjatović N, Uskoković D. Ectopic osteogenesis and hematopoiesis after implantantion of bone marrow cells seeded on HAP/PLLA scaffold. in Hemijska industrija. 2009;63(4):301-307.
doi:10.2298/HEMIND0904301V
https://hdl.handle.net/21.15107/rcub_dais_3362 .

Vasiljević, Perica, Najman, Stevo, Đorđević, Ljubiša, Savić, Vojin P., Vukelić, Marija Đ., Živanov Čurlis, Jelena Z., Ignjatović, Nenad, Uskoković, Dragan, "Ectopic osteogenesis and hematopoiesis after implantantion of bone marrow cells seeded on HAP/PLLA scaffold" in Hemijska industrija, 63, no. 4 (2009):301-307,
https://doi.org/10.2298/HEMIND0904301V .,
https://hdl.handle.net/21.15107/rcub_dais_3362 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Ignjatović, Nenad
AU  - Stojanović, Zoran S.
AU  - Kaličanin, Biljana
AU  - Savić, Vojin
AU  - Petrović, S. M.
AU  - Petrović, B. M.
AU  - Milićević, Jelena
AU  - Uskoković, Dragan
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/4934
AB  - In this study nanocomposite was used for reconstruction of alveolar bone defect of mandible. Specifically, the main interest for the use of magnetic nanoparticles in biomedical applications is that an inhomogeneous external magnetic field exerts a force on them, and thus they can be manipulated or transported to a specific diseased tissue by a magnetic field gradient. In addition, magnetic particles are of interest because they do not retain any magnetism after removal of the magnetic field. Specifically, inorganic biodegradable nanoparticles (including ceramics, like hydroxyapatite) will be functionalized with bioactive compounds that bond to bone of low mass. Extremely good results in the recovery of alveolar bone osteoporosis were achieved already after 6th week of the application of magnetic nanoparticles. After bonding specifically to osteoporotic bone and not healthy bone, magnetic nanoparticle systems will deliver bioactive compounds to locally increase bone mass. Implantation of magnetic nanoparticles will create bone construction and enable quick formation of new bone and become the material of choice for accelerated bone regeneration.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009
T1  - Treatment of osteoporosis alveolar bone with cobalt substituted hydroxyapatite nanoparticles
SP  - 188
EP  - 188
UR  - https://hdl.handle.net/21.15107/rcub_dais_4934
ER  - 

@conference{
author = "Ajduković, Zorica and Ignjatović, Nenad and Stojanović, Zoran S. and Kaličanin, Biljana and Savić, Vojin and Petrović, S. M. and Petrović, B. M. and Milićević, Jelena and Uskoković, Dragan",
year = "2009",
abstract = "In this study nanocomposite was used for reconstruction of alveolar bone defect of mandible. Specifically, the main interest for the use of magnetic nanoparticles in biomedical applications is that an inhomogeneous external magnetic field exerts a force on them, and thus they can be manipulated or transported to a specific diseased tissue by a magnetic field gradient. In addition, magnetic particles are of interest because they do not retain any magnetism after removal of the magnetic field. Specifically, inorganic biodegradable nanoparticles (including ceramics, like hydroxyapatite) will be functionalized with bioactive compounds that bond to bone of low mass. Extremely good results in the recovery of alveolar bone osteoporosis were achieved already after 6th week of the application of magnetic nanoparticles. After bonding specifically to osteoporotic bone and not healthy bone, magnetic nanoparticle systems will deliver bioactive compounds to locally increase bone mass. Implantation of magnetic nanoparticles will create bone construction and enable quick formation of new bone and become the material of choice for accelerated bone regeneration.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009",
title = "Treatment of osteoporosis alveolar bone with cobalt substituted hydroxyapatite nanoparticles",
pages = "188-188",
url = "https://hdl.handle.net/21.15107/rcub_dais_4934"
}

Ajduković, Z., Ignjatović, N., Stojanović, Z. S., Kaličanin, B., Savić, V., Petrović, S. M., Petrović, B. M., Milićević, J.,& Uskoković, D.. (2009). Treatment of osteoporosis alveolar bone with cobalt substituted hydroxyapatite nanoparticles. in Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009
Belgrade : Institute of Technical Sciences of SASA., 188-188.
https://hdl.handle.net/21.15107/rcub_dais_4934

Ajduković Z, Ignjatović N, Stojanović ZS, Kaličanin B, Savić V, Petrović SM, Petrović BM, Milićević J, Uskoković D. Treatment of osteoporosis alveolar bone with cobalt substituted hydroxyapatite nanoparticles. in Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009. 2009;:188-188.
https://hdl.handle.net/21.15107/rcub_dais_4934 .

Ajduković, Zorica, Ignjatović, Nenad, Stojanović, Zoran S., Kaličanin, Biljana, Savić, Vojin, Petrović, S. M., Petrović, B. M., Milićević, Jelena, Uskoković, Dragan, "Treatment of osteoporosis alveolar bone with cobalt substituted hydroxyapatite nanoparticles" in Programme and The Book of Abstracts / Eleventh Annual Conference YUCOMAT 2009, Herceg Novi, August 31 – September 4, 2009 (2009):188-188,
https://hdl.handle.net/21.15107/rcub_dais_4934 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Milićević, Jelena
AU  - Petrović, Milica B.
AU  - Savić, Vojin
AU  - Ignjatović, Nenad
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/4933
AB  - Istraživanje je sprovedeno sa ciljem da se dokaže aktivnost alkalne fosfataze, lokalizovane u dekalcifikovanoj kosti, uzete sa leve strane mandibule pacova, u kojoj je arteficijalno napravljen defekt i implantiran nano kalcijum-kobalt hidroksiapatit. Studija je obuhvatila 48 životinja, starosti 6-8 nedelja. Posle šest i dvadeset četiri nedelje od implantacije biomaterijala, uzeti su uzorci za histohemijsku analizu i fiksirani u PLP fiksativu. Zatim su dekalcifikovani, ukalupljeni u parafinski blok i obrađivani za svetlosno-mikroskopska ispitivanja i histohemijsko dokazivanje aktivnosti alkalne fosfataze. Histološka analiza je pokazala visok stepen reparatornih sposobnosti ugrađenog biokompozita u koštani defekat. Histohemijskom analizom je dokazana aktivnost alkalne fosfataze u mineralizovanom tkivu.
PB  - Beograd : Institut tehničkih nauka
C3  - Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009
T1  - Aktivnost alkalne fosfataze u kosti nakon implantacije nanočestičnog kalcijum-kobalt hidroksiapatita
SP  - 20
EP  - 20
UR  - https://hdl.handle.net/21.15107/rcub_dais_4933
ER  - 

@conference{
author = "Ajduković, Zorica and Milićević, Jelena and Petrović, Milica B. and Savić, Vojin and Ignjatović, Nenad",
year = "2009",
abstract = "Istraživanje je sprovedeno sa ciljem da se dokaže aktivnost alkalne fosfataze, lokalizovane u dekalcifikovanoj kosti, uzete sa leve strane mandibule pacova, u kojoj je arteficijalno napravljen defekt i implantiran nano kalcijum-kobalt hidroksiapatit. Studija je obuhvatila 48 životinja, starosti 6-8 nedelja. Posle šest i dvadeset četiri nedelje od implantacije biomaterijala, uzeti su uzorci za histohemijsku analizu i fiksirani u PLP fiksativu. Zatim su dekalcifikovani, ukalupljeni u parafinski blok i obrađivani za svetlosno-mikroskopska ispitivanja i histohemijsko dokazivanje aktivnosti alkalne fosfataze. Histološka analiza je pokazala visok stepen reparatornih sposobnosti ugrađenog biokompozita u koštani defekat. Histohemijskom analizom je dokazana aktivnost alkalne fosfataze u mineralizovanom tkivu.",
publisher = "Beograd : Institut tehničkih nauka",
journal = "Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009",
title = "Aktivnost alkalne fosfataze u kosti nakon implantacije nanočestičnog kalcijum-kobalt hidroksiapatita",
pages = "20-20",
url = "https://hdl.handle.net/21.15107/rcub_dais_4933"
}

Ajduković, Z., Milićević, J., Petrović, M. B., Savić, V.,& Ignjatović, N.. (2009). Aktivnost alkalne fosfataze u kosti nakon implantacije nanočestičnog kalcijum-kobalt hidroksiapatita. in Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009
Beograd : Institut tehničkih nauka., 20-20.
https://hdl.handle.net/21.15107/rcub_dais_4933

Ajduković Z, Milićević J, Petrović MB, Savić V, Ignjatović N. Aktivnost alkalne fosfataze u kosti nakon implantacije nanočestičnog kalcijum-kobalt hidroksiapatita. in Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009. 2009;:20-20.
https://hdl.handle.net/21.15107/rcub_dais_4933 .

Ajduković, Zorica, Milićević, Jelena, Petrović, Milica B., Savić, Vojin, Ignjatović, Nenad, "Aktivnost alkalne fosfataze u kosti nakon implantacije nanočestičnog kalcijum-kobalt hidroksiapatita" in Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009 (2009):20-20,
https://hdl.handle.net/21.15107/rcub_dais_4933 .

TY  - CONF
AU  - Ajduković, Zorica
AU  - Petrović, Milica B.
AU  - Milićević, Jelena
AU  - Savić, Vojin
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/4929
AB  - Osteoporoza kao bolest savremene civilizacije postaje sve aktuelnija u stomatologiji. Jedan od trendova u nalaženju rešenja je u oralnoj implantologiji kroz primenu biomaterijala sa magnetnim česticama. U ovoj studiji ispitivan je uticaj nanočestica Ca/Co-HAp na regeneraciju osteoporotične alveolarne kosti eksperimentalnih životinja analizom biohemijskih markera krvi (Ca, Mg, P). Istraživanje je sprovedeno na 48 Wistar pacovima, starosti 6-8 nedelja kojima je implantiran biometrijal u osteoprotičnoj alveolarnoj kosti. Dobri rezultati regeneracije osteoporotičnog tkiva su postignuti 6 nedelja nakon implantacije nanočestica. Biohemijski parametri koštane sinteze su u statistički značajnom porastu. Implantacija biomaterijala omogućava brzo formiranje nove kosti što ih čini materijalima izbora za ubrzanu regeneraciju kosti.
PB  - Beograd : Institut tehničkih nauka
C3  - Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009.
T1  - Kalcijum/kobalt hidroksiapatit nanočestice u regeneraciji osteoporotične kosti donje vilice
SP  - 19
EP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_dais_4929
ER  - 

@conference{
author = "Ajduković, Zorica and Petrović, Milica B. and Milićević, Jelena and Savić, Vojin and Ignjatović, Nenad and Uskoković, Dragan",
year = "2009",
abstract = "Osteoporoza kao bolest savremene civilizacije postaje sve aktuelnija u stomatologiji. Jedan od trendova u nalaženju rešenja je u oralnoj implantologiji kroz primenu biomaterijala sa magnetnim česticama. U ovoj studiji ispitivan je uticaj nanočestica Ca/Co-HAp na regeneraciju osteoporotične alveolarne kosti eksperimentalnih životinja analizom biohemijskih markera krvi (Ca, Mg, P). Istraživanje je sprovedeno na 48 Wistar pacovima, starosti 6-8 nedelja kojima je implantiran biometrijal u osteoprotičnoj alveolarnoj kosti. Dobri rezultati regeneracije osteoporotičnog tkiva su postignuti 6 nedelja nakon implantacije nanočestica. Biohemijski parametri koštane sinteze su u statistički značajnom porastu. Implantacija biomaterijala omogućava brzo formiranje nove kosti što ih čini materijalima izbora za ubrzanu regeneraciju kosti.",
publisher = "Beograd : Institut tehničkih nauka",
journal = "Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009.",
title = "Kalcijum/kobalt hidroksiapatit nanočestice u regeneraciji osteoporotične kosti donje vilice",
pages = "19-19",
url = "https://hdl.handle.net/21.15107/rcub_dais_4929"
}

Ajduković, Z., Petrović, M. B., Milićević, J., Savić, V., Ignjatović, N.,& Uskoković, D.. (2009). Kalcijum/kobalt hidroksiapatit nanočestice u regeneraciji osteoporotične kosti donje vilice. in Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009.
Beograd : Institut tehničkih nauka., 19-19.
https://hdl.handle.net/21.15107/rcub_dais_4929

Ajduković Z, Petrović MB, Milićević J, Savić V, Ignjatović N, Uskoković D. Kalcijum/kobalt hidroksiapatit nanočestice u regeneraciji osteoporotične kosti donje vilice. in Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009.. 2009;:19-19.
https://hdl.handle.net/21.15107/rcub_dais_4929 .

Ajduković, Zorica, Petrović, Milica B., Milićević, Jelena, Savić, Vojin, Ignjatović, Nenad, Uskoković, Dragan, "Kalcijum/kobalt hidroksiapatit nanočestice u regeneraciji osteoporotične kosti donje vilice" in Program i knjiga apstrakata / Osma konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 21–23. decembar 2009. (2009):19-19,
https://hdl.handle.net/21.15107/rcub_dais_4929 .

TY  - JOUR
AU  - Janićijević, Jelena M.
AU  - Najman, Stevo
AU  - Ignjatović, Nenad
AU  - Savić, Vojin P.
AU  - Kocić, Jelena S.
AU  - Vasiljević, Perica
AU  - Vukelić, Marija Đ.
AU  - Uskoković, Dragan
PY  - 2008
UR  - http://www.ncbi.nlm.nih.gov/pubmed/0367-598X0803205J
UR  - https://dais.sanu.ac.rs/123456789/3363
AB  - The need for bone graft materials in osteoreparation is tremendous. Many researches have shown that calcium-phosphate bioceramics have good biocompatibility and osteoconductivity. We used nanocomposite biomaterial calcium phosphate coated with poly (dl-lactide-co-glycolide) or N-CP/DLPLG. The goal of this investigation was to examine weather N-CP/DLPLG has ability to sustain growth of bone marrow cells after subcutaneous implantation in Balb/c mice. For that purpose N-CP/DLPLG implants with and without bone marrow cells (control) were made. Implants were extracted after eight days and eight weeks. In implants loaded with bone marrow cells after eight days and eight weeks we observed fields rich in cells, angiogenesis and collagen genesis. These results showed that N-CP/DLPLG has property of tissue scaffold which sustain bone marrow cells growth and collagen production. This represents a good way for further examination of N-CP/DLPLG as potentional tissue scaffold in osteoreparation.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T2  - Hemijska industrija
T1  - Nanomaterial N-CP/DLPLG as potentional tissue graft in osteoreparation in combination with bone marrow cells on subcutaneous implantation model
SP  - 205
EP  - 210
VL  - 62
IS  - 3
DO  - 10.2298/HEMIND0803205J
UR  - https://hdl.handle.net/21.15107/rcub_dais_3363
ER  - 

@article{
author = "Janićijević, Jelena M. and Najman, Stevo and Ignjatović, Nenad and Savić, Vojin P. and Kocić, Jelena S. and Vasiljević, Perica and Vukelić, Marija Đ. and Uskoković, Dragan",
year = "2008",
abstract = "The need for bone graft materials in osteoreparation is tremendous. Many researches have shown that calcium-phosphate bioceramics have good biocompatibility and osteoconductivity. We used nanocomposite biomaterial calcium phosphate coated with poly (dl-lactide-co-glycolide) or N-CP/DLPLG. The goal of this investigation was to examine weather N-CP/DLPLG has ability to sustain growth of bone marrow cells after subcutaneous implantation in Balb/c mice. For that purpose N-CP/DLPLG implants with and without bone marrow cells (control) were made. Implants were extracted after eight days and eight weeks. In implants loaded with bone marrow cells after eight days and eight weeks we observed fields rich in cells, angiogenesis and collagen genesis. These results showed that N-CP/DLPLG has property of tissue scaffold which sustain bone marrow cells growth and collagen production. This represents a good way for further examination of N-CP/DLPLG as potentional tissue scaffold in osteoreparation.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija, Hemijska industrija",
title = "Nanomaterial N-CP/DLPLG as potentional tissue graft in osteoreparation in combination with bone marrow cells on subcutaneous implantation model",
pages = "205-210",
volume = "62",
number = "3",
doi = "10.2298/HEMIND0803205J",
url = "https://hdl.handle.net/21.15107/rcub_dais_3363"
}

Janićijević, J. M., Najman, S., Ignjatović, N., Savić, V. P., Kocić, J. S., Vasiljević, P., Vukelić, M. Đ.,& Uskoković, D.. (2008). Nanomaterial N-CP/DLPLG as potentional tissue graft in osteoreparation in combination with bone marrow cells on subcutaneous implantation model. in Hemijska industrija
Belgrade : Association of the Chemical Engineers of Serbia., 62(3), 205-210.
https://doi.org/10.2298/HEMIND0803205J
https://hdl.handle.net/21.15107/rcub_dais_3363

Janićijević JM, Najman S, Ignjatović N, Savić VP, Kocić JS, Vasiljević P, Vukelić MĐ, Uskoković D. Nanomaterial N-CP/DLPLG as potentional tissue graft in osteoreparation in combination with bone marrow cells on subcutaneous implantation model. in Hemijska industrija. 2008;62(3):205-210.
doi:10.2298/HEMIND0803205J
https://hdl.handle.net/21.15107/rcub_dais_3363 .

Janićijević, Jelena M., Najman, Stevo, Ignjatović, Nenad, Savić, Vojin P., Kocić, Jelena S., Vasiljević, Perica, Vukelić, Marija Đ., Uskoković, Dragan, "Nanomaterial N-CP/DLPLG as potentional tissue graft in osteoreparation in combination with bone marrow cells on subcutaneous implantation model" in Hemijska industrija, 62, no. 3 (2008):205-210,
https://doi.org/10.2298/HEMIND0803205J .,
https://hdl.handle.net/21.15107/rcub_dais_3363 .

TY  - JOUR
AU  - Kaličanin, Biljana
AU  - Ajduković, Zorica
AU  - Kostić, Milena
AU  - Najman, Stevo
AU  - Savić, Vojin
AU  - Ignjatović, Nenad
PY  - 2007
UR  - https://dais.sanu.ac.rs/123456789/13687
AB  - Gubitak koštanog tkiva, usled resorpcije viličnih kostiju, ima značajno mesto u stomatologiji. U cilju rešavanja problema deficita koštanog tkiva nastalih resorpcijom alveolarne kosti pristupilo se primeni sintetičkih materijala na bazi CP/PLGA (kalcijum-fosfat/polilaktid-co-glikolid) kompozita. Istraživanja su radena na pacovima kod kojih je arteficijelno izazivana resorpcija viličnih kostiju. Rezultati su pokazali da se najbolji efekat regeneracije alveolarne kosti postižu implantacijom nanokompozita. Efekat nanokompozita praćenje određivanjem sadržaja kalcijuma i fosfata, kao osnova kristalne rešetke hidroksiapatita. Dobijeni rezultati pokazuju da sintetički CP/PLGA nanokompozit olakšava rehabilitaciju oslabljene alveolarne kosti, pa zahvaljujući svom osteokonduktivnom efektu može u budućnosti biti materijal izbora u zameni koštanog tkiva.
AB  - The alveolar bone tissue resorption defect has a significant role in dentistry. Because of the bone tissue deficit developed by alveolar resorption, the use of synthetic material CP/PLGA (calcium-phosphate/polylactide-co-gliycolide) composite was introduced. Investigations were performed on rats with artificially produced resorption of the mandibular bone. The results show that the best effect on alveolar bone were attained by using nano-composite implants. The effect of the nanocomposite was ascertained by determining the calcium and phosphate content, as a basis of the hydroxyapatite structure. The results show that synthetic CP/PLGA nanocomposite alleviate the rehabilitation of weakened alveolar bone. Due to its osteoconductive effect, CP/PLGA can be the material of choice for bone substitution in the future.
PB  - Belgrade : Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Uloga sintetičkih biomaterijala u procesu regeneracije resorbovane alveolarne kosti
T1  - The role of synthetic biomaterials in resorptive alveolar bone regeneration
SP  - 96
EP  - 100
VL  - 61
IS  - 2
DO  - 10.2298/HEMIND0702096K
UR  - https://hdl.handle.net/21.15107/rcub_dais_13687
ER  - 

@article{
author = "Kaličanin, Biljana and Ajduković, Zorica and Kostić, Milena and Najman, Stevo and Savić, Vojin and Ignjatović, Nenad",
year = "2007",
abstract = "Gubitak koštanog tkiva, usled resorpcije viličnih kostiju, ima značajno mesto u stomatologiji. U cilju rešavanja problema deficita koštanog tkiva nastalih resorpcijom alveolarne kosti pristupilo se primeni sintetičkih materijala na bazi CP/PLGA (kalcijum-fosfat/polilaktid-co-glikolid) kompozita. Istraživanja su radena na pacovima kod kojih je arteficijelno izazivana resorpcija viličnih kostiju. Rezultati su pokazali da se najbolji efekat regeneracije alveolarne kosti postižu implantacijom nanokompozita. Efekat nanokompozita praćenje određivanjem sadržaja kalcijuma i fosfata, kao osnova kristalne rešetke hidroksiapatita. Dobijeni rezultati pokazuju da sintetički CP/PLGA nanokompozit olakšava rehabilitaciju oslabljene alveolarne kosti, pa zahvaljujući svom osteokonduktivnom efektu može u budućnosti biti materijal izbora u zameni koštanog tkiva., The alveolar bone tissue resorption defect has a significant role in dentistry. Because of the bone tissue deficit developed by alveolar resorption, the use of synthetic material CP/PLGA (calcium-phosphate/polylactide-co-gliycolide) composite was introduced. Investigations were performed on rats with artificially produced resorption of the mandibular bone. The results show that the best effect on alveolar bone were attained by using nano-composite implants. The effect of the nanocomposite was ascertained by determining the calcium and phosphate content, as a basis of the hydroxyapatite structure. The results show that synthetic CP/PLGA nanocomposite alleviate the rehabilitation of weakened alveolar bone. Due to its osteoconductive effect, CP/PLGA can be the material of choice for bone substitution in the future.",
publisher = "Belgrade : Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Uloga sintetičkih biomaterijala u procesu regeneracije resorbovane alveolarne kosti, The role of synthetic biomaterials in resorptive alveolar bone regeneration",
pages = "96-100",
volume = "61",
number = "2",
doi = "10.2298/HEMIND0702096K",
url = "https://hdl.handle.net/21.15107/rcub_dais_13687"
}

Kaličanin, B., Ajduković, Z., Kostić, M., Najman, S., Savić, V.,& Ignjatović, N.. (2007). Uloga sintetičkih biomaterijala u procesu regeneracije resorbovane alveolarne kosti. in Hemijska industrija
Belgrade : Association of the Chemical Engineers of Serbia., 61(2), 96-100.
https://doi.org/10.2298/HEMIND0702096K
https://hdl.handle.net/21.15107/rcub_dais_13687

Kaličanin B, Ajduković Z, Kostić M, Najman S, Savić V, Ignjatović N. Uloga sintetičkih biomaterijala u procesu regeneracije resorbovane alveolarne kosti. in Hemijska industrija. 2007;61(2):96-100.
doi:10.2298/HEMIND0702096K
https://hdl.handle.net/21.15107/rcub_dais_13687 .

Kaličanin, Biljana, Ajduković, Zorica, Kostić, Milena, Najman, Stevo, Savić, Vojin, Ignjatović, Nenad, "Uloga sintetičkih biomaterijala u procesu regeneracije resorbovane alveolarne kosti" in Hemijska industrija, 61, no. 2 (2007):96-100,
https://doi.org/10.2298/HEMIND0702096K .,
https://hdl.handle.net/21.15107/rcub_dais_13687 .

TY  - CONF
AU  - Janićijević, Jelena
AU  - Najman, Stevo
AU  - Ignjatović, Nenad
AU  - Savić, Vojin
AU  - Kocić, Jelena
AU  - Vasiljević, Perica
AU  - Uskoković, Dragan
PY  - 2007
UR  - https://dais.sanu.ac.rs/123456789/6273
AB  - Ispitivan je nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica za reparaciju kosti pri korišćenju kostne srži kao izvora osteogenih ćelija na modelu subkutane implantacije singenim miševima Balb/c. Implanti su napravljeni od nanomaterijala mešanjem sa razblaženom krvlju i kostnom srži, a ekstrahovani su nakon osam dana i osam nedelja. Implanti bez kostne srži su bili kontrola. Nakon osam dana se na periferiji implanta vide gusta polja sa ćelijama, a u materijalu se vidi lakunarna organizacija sa prisustvom ćelija. Uočljiva je vaskularizacija i registrovan je kolagen. Na kontrolnim implantima je celularnost vrlo slaba. Posle osam nedelja redukovana je površina nanomaterijala i celularnost implanata.
PB  - Beograd : Institut tehničkih nauka SANU
C3  - Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007
T1  - Nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica u osteoreparaciji pomoću kostne srži na modelu subkutane implantacije
SP  - 5
EP  - 5
UR  - https://hdl.handle.net/21.15107/rcub_dais_6273
ER  - 

@conference{
author = "Janićijević, Jelena and Najman, Stevo and Ignjatović, Nenad and Savić, Vojin and Kocić, Jelena and Vasiljević, Perica and Uskoković, Dragan",
year = "2007",
abstract = "Ispitivan je nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica za reparaciju kosti pri korišćenju kostne srži kao izvora osteogenih ćelija na modelu subkutane implantacije singenim miševima Balb/c. Implanti su napravljeni od nanomaterijala mešanjem sa razblaženom krvlju i kostnom srži, a ekstrahovani su nakon osam dana i osam nedelja. Implanti bez kostne srži su bili kontrola. Nakon osam dana se na periferiji implanta vide gusta polja sa ćelijama, a u materijalu se vidi lakunarna organizacija sa prisustvom ćelija. Uočljiva je vaskularizacija i registrovan je kolagen. Na kontrolnim implantima je celularnost vrlo slaba. Posle osam nedelja redukovana je površina nanomaterijala i celularnost implanata.",
publisher = "Beograd : Institut tehničkih nauka SANU",
journal = "Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007",
title = "Nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica u osteoreparaciji pomoću kostne srži na modelu subkutane implantacije",
pages = "5-5",
url = "https://hdl.handle.net/21.15107/rcub_dais_6273"
}

Janićijević, J., Najman, S., Ignjatović, N., Savić, V., Kocić, J., Vasiljević, P.,& Uskoković, D.. (2007). Nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica u osteoreparaciji pomoću kostne srži na modelu subkutane implantacije. in Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007
Beograd : Institut tehničkih nauka SANU., 5-5.
https://hdl.handle.net/21.15107/rcub_dais_6273

Janićijević J, Najman S, Ignjatović N, Savić V, Kocić J, Vasiljević P, Uskoković D. Nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica u osteoreparaciji pomoću kostne srži na modelu subkutane implantacije. in Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007. 2007;:5-5.
https://hdl.handle.net/21.15107/rcub_dais_6273 .

Janićijević, Jelena, Najman, Stevo, Ignjatović, Nenad, Savić, Vojin, Kocić, Jelena, Vasiljević, Perica, Uskoković, Dragan, "Nanomaterijal N-CP/PLGLP kao potencijalna tkivna matrica u osteoreparaciji pomoću kostne srži na modelu subkutane implantacije" in Program i knjiga apstrakata / Šesta konferencija mladih istraživača Nauka i inženjerstvo novih materijala, Beograd, 24–26. decembar 2007 (2007):5-5,
https://hdl.handle.net/21.15107/rcub_dais_6273 .

TY  - JOUR
AU  - Ajduković, Zorica
AU  - Najman, Stevo
AU  - Ðorđević, Lj.
AU  - Savić, Vojin
AU  - Mihailović, D.
AU  - Petrović, D.
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2005
UR  - https://dais.sanu.ac.rs/123456789/14299
AB  - The aim of this study is to examine the reparatory ability of the synthetic biomaterial hydroxyapatite-poly-L-lactide (HAp-PLLA), the replacement of alveolar ridge, and rehabilitation of bone defects caused by osteoporosis, in an experimental group of animals. The experiments are performed on syngeneic Sprague Dawley rats. Osteoporosis is induced by glucocorticoids in rats during a 12-week period. After this, the experimental group of animals is divided into five subgroups. An artificial defect is made in the alveolar bone on the left side of the mandible. In one group of animals, the defect is left to heal by itself, while in other groups, pure HAp-PLLA or one mixed with plasma is implanted. The best results are achieved by the implantation of the HAp-PLLA composite biomaterial mixed with autologous plasma. Formation of a new mandibular bone is seen, growing intensely, leading to rapid osteogenesis.
PB  - SAGE Publications
T2  - Journal of Biomaterials Applications
T1  - Repair of Bone Tissue Affected by Osteoporosis with Hydroxyapatite-Poly-L-lactide (HAp-PLLA) with and Without Blood Plasma
SP  - 179
EP  - 190
VL  - 20
IS  - 2
DO  - 10.1177/0885328205050519
UR  - https://hdl.handle.net/21.15107/rcub_dais_14299
ER  - 

@article{
author = "Ajduković, Zorica and Najman, Stevo and Ðorđević, Lj. and Savić, Vojin and Mihailović, D. and Petrović, D. and Ignjatović, Nenad and Uskoković, Dragan",
year = "2005",
abstract = "The aim of this study is to examine the reparatory ability of the synthetic biomaterial hydroxyapatite-poly-L-lactide (HAp-PLLA), the replacement of alveolar ridge, and rehabilitation of bone defects caused by osteoporosis, in an experimental group of animals. The experiments are performed on syngeneic Sprague Dawley rats. Osteoporosis is induced by glucocorticoids in rats during a 12-week period. After this, the experimental group of animals is divided into five subgroups. An artificial defect is made in the alveolar bone on the left side of the mandible. In one group of animals, the defect is left to heal by itself, while in other groups, pure HAp-PLLA or one mixed with plasma is implanted. The best results are achieved by the implantation of the HAp-PLLA composite biomaterial mixed with autologous plasma. Formation of a new mandibular bone is seen, growing intensely, leading to rapid osteogenesis.",
publisher = "SAGE Publications",
journal = "Journal of Biomaterials Applications",
title = "Repair of Bone Tissue Affected by Osteoporosis with Hydroxyapatite-Poly-L-lactide (HAp-PLLA) with and Without Blood Plasma",
pages = "179-190",
volume = "20",
number = "2",
doi = "10.1177/0885328205050519",
url = "https://hdl.handle.net/21.15107/rcub_dais_14299"
}

Ajduković, Z., Najman, S., Ðorđević, Lj., Savić, V., Mihailović, D., Petrović, D., Ignjatović, N.,& Uskoković, D.. (2005). Repair of Bone Tissue Affected by Osteoporosis with Hydroxyapatite-Poly-L-lactide (HAp-PLLA) with and Without Blood Plasma. in Journal of Biomaterials Applications
SAGE Publications., 20(2), 179-190.
https://doi.org/10.1177/0885328205050519
https://hdl.handle.net/21.15107/rcub_dais_14299

Ajduković Z, Najman S, Ðorđević L, Savić V, Mihailović D, Petrović D, Ignjatović N, Uskoković D. Repair of Bone Tissue Affected by Osteoporosis with Hydroxyapatite-Poly-L-lactide (HAp-PLLA) with and Without Blood Plasma. in Journal of Biomaterials Applications. 2005;20(2):179-190.
doi:10.1177/0885328205050519
https://hdl.handle.net/21.15107/rcub_dais_14299 .

Ajduković, Zorica, Najman, Stevo, Ðorđević, Lj., Savić, Vojin, Mihailović, D., Petrović, D., Ignjatović, Nenad, Uskoković, Dragan, "Repair of Bone Tissue Affected by Osteoporosis with Hydroxyapatite-Poly-L-lactide (HAp-PLLA) with and Without Blood Plasma" in Journal of Biomaterials Applications, 20, no. 2 (2005):179-190,
https://doi.org/10.1177/0885328205050519 .,
https://hdl.handle.net/21.15107/rcub_dais_14299 .

TY  - JOUR
AU  - Najman, Stevo
AU  - Đorđević, Ljubiša
AU  - Savić, Vojin
AU  - Ignjatović, Nenad
AU  - Miljković, Miroslav
AU  - Vasiljević, Perica
AU  - Uskoković, Dragan
PY  - 2005
UR  - http://www.ncbi.nlm.nih.gov/pubmed/0365-44780503005N
UR  - https://dais.sanu.ac.rs/123456789/3365
AB  - Siloxane polimers have been widely used in biomedicine and pharmacy due to their biocompatibility. Hydroxyapatite (HAp) is a natural constituent of bones, and therefore widely used in maxillofacial and orthopedic surgery. HAp itself is amorphous and without elasticity, so its characteristics can be improved when combined with organic polymers. We evaluated the interaction of cells and composites made of polydimethylsiloxane (PDMS) and HAp by scanning electron microscopy (SEM) 10 days after their intraperitoneal implantation into Balb/c mice. Two composites which were different in the quantity of HAp were analyzed. Both of them showed high adhesive characteristics for different cell types. The erythrocytes in cell clusters could be seen on the surface of the composite with higher quantity of HAp.
AB  - Siloksanski polimeri široko se koriste u biomedicini i farmaciji. Hidroksiapatit (HAp) je prirodni konstituent kosti i zato je u širokoj upotrebi u maksilofacijalnoj i ortopedskoj hirurgiji. Sam HAp je amorfan i nema elastičnosti, pa se njegove osobine poboljšavaju kombinovanjem sa polimerima. Ispitivali smo interakciju ćelija i kompozita izrađenog od polidimetilsiloksana (PDMS) i HAp-a skening elektronskom mikroskopijom (SEM) 10 dana posle intraperitonealne implantacije ovih materijala u Balb/c miševe. Analizirana su dva kompozita koji se razlikuju u količini HAp-a. Oba se karakterišu visokom adhezivnošću za različite tipove ćelija. Eritrociti se vide u ćelijskim klasterima na površini kompozita sa većom količinom HAp-a.
PB  - Niš : University of Niš, Faculty of Medicine
T2  - Acta medica Medianae
T1  - Cell response to intraperitoneal pdms/HAp composite implant
T1  - Ćelijski odgovor na intraperitonealni implant kompozita pdms/HAp
SP  - 5
EP  - 8
VL  - 44
IS  - 3
UR  - https://hdl.handle.net/21.15107/rcub_dais_3365
ER  - 

@article{
author = "Najman, Stevo and Đorđević, Ljubiša and Savić, Vojin and Ignjatović, Nenad and Miljković, Miroslav and Vasiljević, Perica and Uskoković, Dragan",
year = "2005",
abstract = "Siloxane polimers have been widely used in biomedicine and pharmacy due to their biocompatibility. Hydroxyapatite (HAp) is a natural constituent of bones, and therefore widely used in maxillofacial and orthopedic surgery. HAp itself is amorphous and without elasticity, so its characteristics can be improved when combined with organic polymers. We evaluated the interaction of cells and composites made of polydimethylsiloxane (PDMS) and HAp by scanning electron microscopy (SEM) 10 days after their intraperitoneal implantation into Balb/c mice. Two composites which were different in the quantity of HAp were analyzed. Both of them showed high adhesive characteristics for different cell types. The erythrocytes in cell clusters could be seen on the surface of the composite with higher quantity of HAp., Siloksanski polimeri široko se koriste u biomedicini i farmaciji. Hidroksiapatit (HAp) je prirodni konstituent kosti i zato je u širokoj upotrebi u maksilofacijalnoj i ortopedskoj hirurgiji. Sam HAp je amorfan i nema elastičnosti, pa se njegove osobine poboljšavaju kombinovanjem sa polimerima. Ispitivali smo interakciju ćelija i kompozita izrađenog od polidimetilsiloksana (PDMS) i HAp-a skening elektronskom mikroskopijom (SEM) 10 dana posle intraperitonealne implantacije ovih materijala u Balb/c miševe. Analizirana su dva kompozita koji se razlikuju u količini HAp-a. Oba se karakterišu visokom adhezivnošću za različite tipove ćelija. Eritrociti se vide u ćelijskim klasterima na površini kompozita sa većom količinom HAp-a.",
publisher = "Niš : University of Niš, Faculty of Medicine",
journal = "Acta medica Medianae",
title = "Cell response to intraperitoneal pdms/HAp composite implant, Ćelijski odgovor na intraperitonealni implant kompozita pdms/HAp",
pages = "5-8",
volume = "44",
number = "3",
url = "https://hdl.handle.net/21.15107/rcub_dais_3365"
}

Najman, S., Đorđević, L., Savić, V., Ignjatović, N., Miljković, M., Vasiljević, P.,& Uskoković, D.. (2005). Cell response to intraperitoneal pdms/HAp composite implant. in Acta medica Medianae
Niš : University of Niš, Faculty of Medicine., 44(3), 5-8.
https://hdl.handle.net/21.15107/rcub_dais_3365

Najman S, Đorđević L, Savić V, Ignjatović N, Miljković M, Vasiljević P, Uskoković D. Cell response to intraperitoneal pdms/HAp composite implant. in Acta medica Medianae. 2005;44(3):5-8.
https://hdl.handle.net/21.15107/rcub_dais_3365 .

Najman, Stevo, Đorđević, Ljubiša, Savić, Vojin, Ignjatović, Nenad, Miljković, Miroslav, Vasiljević, Perica, Uskoković, Dragan, "Cell response to intraperitoneal pdms/HAp composite implant" in Acta medica Medianae, 44, no. 3 (2005):5-8,
https://hdl.handle.net/21.15107/rcub_dais_3365 .

TY  - JOUR
AU  - Najman, Stevo
AU  - Savić, Vojin
AU  - Đorđević, Lj.
AU  - Ignjatović, Nenad
AU  - Uskoković, Dragan
PY  - 2004
UR  - https://dais.sanu.ac.rs/123456789/14301
AB  - Histopathologic analysis of the tissue with HAp/PLLA implants was made and the leukocyte formula and chemiluminescence response of peritoneal phagocytes 2, 7 and 12 weeks after intraperitoneal implantation studied. Implants were made of HAp/PLLA biocomposites with PLLA molecular weights of 50,000 (HAp/PLLA(50)) and 430,000 g/mol (HAp/PLLA(430)) and of crushed devitalized femur bone of a young Wistar rat. Leukocyte formula and chemiluminescence of peritoneal phagocytes showed no systemic inflammatory response. The studied implants caused locally weak inflammatory reaction. The resorption of implants ranges in intensity (polymer resorption, i.e. disappearance rate), from the highest with the bone implants, low with HAp/PLLA(50), to the lowest with the HAp/PLLA(430) implants. Good resorption of the biocomposites and its mutual ingrowth with connective tissue prove their good biocompatibility.
PB  - IOS Press
T2  - Bio-Medical Materials and Engineering
T1  - Biological evaluation of hydroxyapatite/poly‐L‐lactide (HAp/PLLA) composite biomaterials with poly‐L‐lactide of different molecular weights intraperitoneally implanted into mice
SP  - 61
EP  - 70
VL  - 14
IS  - 1
UR  - https://hdl.handle.net/21.15107/rcub_dais_14301
ER  - 

@article{
author = "Najman, Stevo and Savić, Vojin and Đorđević, Lj. and Ignjatović, Nenad and Uskoković, Dragan",
year = "2004",
abstract = "Histopathologic analysis of the tissue with HAp/PLLA implants was made and the leukocyte formula and chemiluminescence response of peritoneal phagocytes 2, 7 and 12 weeks after intraperitoneal implantation studied. Implants were made of HAp/PLLA biocomposites with PLLA molecular weights of 50,000 (HAp/PLLA(50)) and 430,000 g/mol (HAp/PLLA(430)) and of crushed devitalized femur bone of a young Wistar rat. Leukocyte formula and chemiluminescence of peritoneal phagocytes showed no systemic inflammatory response. The studied implants caused locally weak inflammatory reaction. The resorption of implants ranges in intensity (polymer resorption, i.e. disappearance rate), from the highest with the bone implants, low with HAp/PLLA(50), to the lowest with the HAp/PLLA(430) implants. Good resorption of the biocomposites and its mutual ingrowth with connective tissue prove their good biocompatibility.",
publisher = "IOS Press",
journal = "Bio-Medical Materials and Engineering",
title = "Biological evaluation of hydroxyapatite/poly‐L‐lactide (HAp/PLLA) composite biomaterials with poly‐L‐lactide of different molecular weights intraperitoneally implanted into mice",
pages = "61-70",
volume = "14",
number = "1",
url = "https://hdl.handle.net/21.15107/rcub_dais_14301"
}

Najman, S., Savić, V., Đorđević, Lj., Ignjatović, N.,& Uskoković, D.. (2004). Biological evaluation of hydroxyapatite/poly‐L‐lactide (HAp/PLLA) composite biomaterials with poly‐L‐lactide of different molecular weights intraperitoneally implanted into mice. in Bio-Medical Materials and Engineering
IOS Press., 14(1), 61-70.
https://hdl.handle.net/21.15107/rcub_dais_14301

Najman S, Savić V, Đorđević L, Ignjatović N, Uskoković D. Biological evaluation of hydroxyapatite/poly‐L‐lactide (HAp/PLLA) composite biomaterials with poly‐L‐lactide of different molecular weights intraperitoneally implanted into mice. in Bio-Medical Materials and Engineering. 2004;14(1):61-70.
https://hdl.handle.net/21.15107/rcub_dais_14301 .

Najman, Stevo, Savić, Vojin, Đorđević, Lj., Ignjatović, Nenad, Uskoković, Dragan, "Biological evaluation of hydroxyapatite/poly‐L‐lactide (HAp/PLLA) composite biomaterials with poly‐L‐lactide of different molecular weights intraperitoneally implanted into mice" in Bio-Medical Materials and Engineering, 14, no. 1 (2004):61-70,
https://hdl.handle.net/21.15107/rcub_dais_14301 .

TY  - JOUR
AU  - Najman, Stevo
AU  - Đorđević, Lj.
AU  - Savić, Vojin
AU  - Ignjatović, Nenad
AU  - Plavšić, Milenko
AU  - Uskoković, Dragan
PY  - 2003
UR  - http://www.ncbi.nlm.nih.gov/pubmed/0354-21170303131N
UR  - https://dais.sanu.ac.rs/123456789/3361
AB  - Experimental and clinical studies have shown that HAp granules and powder may be successfully applied in reconstruction of bone defects. Composite HAp/PLLA biomaterial embodies good characteristics of each of these biomaterials. Differences in porosity, microstructure, compressive consistency as well as in bioresorbility of HAp/PLLA are achieved by using PLLA of different mole masses. The aim of this study was to analyse light microscopy of the tissue reaction and changes of implants made of combination of syngeneic bone fragments and HAp/PLLA biocomposites with PLLA molecule mass of 430 000 (HP2) and 50 000 (HP3). The mice were divided into 4 experimental studies, 8 animals each. Two groups underwent implantation one group of mice was falsely operated, and one group was used for general control. Pathohistological analysis of implants was performed three months after subcutaneous implantation. Phagocytosis of HAp/ PLLA and bone was noticed on both implants’ preparations. Blood vessels were also noticed confirming the process of angiogenesis around the implants’ particles. The holes around particles of biocomposites and bone fragments represented the signs of their resorption. The presence of multinuclear cells between implants’ particles was observed and it was more prominent in HP3 implants. Osteogenesis is more intense in HP3 and ectopic hematopoesis is present. Our results show that designed HAp/PLLA biocomposites have good biocompatibility, their combination with bone fragments of a vital bone enables osteogenesis and hematopoesis and these processes are more prominent if PLLA biocomposite with lower molecular mass was used.
PB  - Niš : University of Niš
T2  - Facta universitatis - series: Medicine and Biology
T1  - Changes of HAp/PLLA biocomposites and tissue reaction after subcutaneous implantation
SP  - 131
EP  - 134
VL  - 10
IS  - 3
UR  - https://hdl.handle.net/21.15107/rcub_dais_3361
ER  - 

@article{
author = "Najman, Stevo and Đorđević, Lj. and Savić, Vojin and Ignjatović, Nenad and Plavšić, Milenko and Uskoković, Dragan",
year = "2003",
abstract = "Experimental and clinical studies have shown that HAp granules and powder may be successfully applied in reconstruction of bone defects. Composite HAp/PLLA biomaterial embodies good characteristics of each of these biomaterials. Differences in porosity, microstructure, compressive consistency as well as in bioresorbility of HAp/PLLA are achieved by using PLLA of different mole masses. The aim of this study was to analyse light microscopy of the tissue reaction and changes of implants made of combination of syngeneic bone fragments and HAp/PLLA biocomposites with PLLA molecule mass of 430 000 (HP2) and 50 000 (HP3). The mice were divided into 4 experimental studies, 8 animals each. Two groups underwent implantation one group of mice was falsely operated, and one group was used for general control. Pathohistological analysis of implants was performed three months after subcutaneous implantation. Phagocytosis of HAp/ PLLA and bone was noticed on both implants’ preparations. Blood vessels were also noticed confirming the process of angiogenesis around the implants’ particles. The holes around particles of biocomposites and bone fragments represented the signs of their resorption. The presence of multinuclear cells between implants’ particles was observed and it was more prominent in HP3 implants. Osteogenesis is more intense in HP3 and ectopic hematopoesis is present. Our results show that designed HAp/PLLA biocomposites have good biocompatibility, their combination with bone fragments of a vital bone enables osteogenesis and hematopoesis and these processes are more prominent if PLLA biocomposite with lower molecular mass was used.",
publisher = "Niš : University of Niš",
journal = "Facta universitatis - series: Medicine and Biology",
title = "Changes of HAp/PLLA biocomposites and tissue reaction after subcutaneous implantation",
pages = "131-134",
volume = "10",
number = "3",
url = "https://hdl.handle.net/21.15107/rcub_dais_3361"
}

Najman, S., Đorđević, Lj., Savić, V., Ignjatović, N., Plavšić, M.,& Uskoković, D.. (2003). Changes of HAp/PLLA biocomposites and tissue reaction after subcutaneous implantation. in Facta universitatis - series: Medicine and Biology
Niš : University of Niš., 10(3), 131-134.
https://hdl.handle.net/21.15107/rcub_dais_3361

Najman S, Đorđević L, Savić V, Ignjatović N, Plavšić M, Uskoković D. Changes of HAp/PLLA biocomposites and tissue reaction after subcutaneous implantation. in Facta universitatis - series: Medicine and Biology. 2003;10(3):131-134.
https://hdl.handle.net/21.15107/rcub_dais_3361 .

Najman, Stevo, Đorđević, Lj., Savić, Vojin, Ignjatović, Nenad, Plavšić, Milenko, Uskoković, Dragan, "Changes of HAp/PLLA biocomposites and tissue reaction after subcutaneous implantation" in Facta universitatis - series: Medicine and Biology, 10, no. 3 (2003):131-134,
https://hdl.handle.net/21.15107/rcub_dais_3361 .

TY  - JOUR
AU  - Ignjatović, Nenad
AU  - Savić, Vojin
AU  - Najman, Stevo
AU  - Plavšić, Milenko
AU  - Uskoković, Dragan
PY  - 2001
UR  - https://dais.sanu.ac.rs/123456789/14359
AB  - Chemically synthesized hydroxyapatite/poly-l-lactide (HAp/PLLA) composite biomaterial was studied in vivo. The biocomposite was implanted into Balb/c Singen mice and after 1 and 3 weeks removed from their organisms and analyzed by the FT-IR spectroscopy. After 1 week of testing in vivo the implanted sample gave a spectrum in which absorption bands arising from newly formed functional groups of amine and peptide can be seen. After 3 weeks, a spectrum with pronounced absorption bands at 3420 and 1650 cm−1 assigned to newly generated collagen, a component of the extracellular connective-tissue matrix, was registered. Also, decrease of the intensity absorption band at 1760 cm−1 originating from the CO group of PLLA indicates bioresorption of the PLLA used. Analysis of the microstructure of the sample surface by scanning electron microscopy before and after implantation revealed bioresorption of the PLLA polymer phase and generation of collagen fibers at the sites of implanted bioresorptive PLLA. A mixture of autologous bone powder and HAp/PLLA biocomposite was also examined. After implantation, the same final products as in the case of HAp/PLLA composite biomaterial used alone were found.
PB  - Elsevier BV
T2  - Biomaterials
T1  - A study of HAp/PLLA composite as a substitute for bone powder, using FT-IR spectroscopy
SP  - 571
EP  - 575
VL  - 22
IS  - 6
DO  - 10.1016/S0142-9612(00)00215-5
UR  - https://hdl.handle.net/21.15107/rcub_dais_14359
ER  - 

@article{
author = "Ignjatović, Nenad and Savić, Vojin and Najman, Stevo and Plavšić, Milenko and Uskoković, Dragan",
year = "2001",
abstract = "Chemically synthesized hydroxyapatite/poly-l-lactide (HAp/PLLA) composite biomaterial was studied in vivo. The biocomposite was implanted into Balb/c Singen mice and after 1 and 3 weeks removed from their organisms and analyzed by the FT-IR spectroscopy. After 1 week of testing in vivo the implanted sample gave a spectrum in which absorption bands arising from newly formed functional groups of amine and peptide can be seen. After 3 weeks, a spectrum with pronounced absorption bands at 3420 and 1650 cm−1 assigned to newly generated collagen, a component of the extracellular connective-tissue matrix, was registered. Also, decrease of the intensity absorption band at 1760 cm−1 originating from the CO group of PLLA indicates bioresorption of the PLLA used. Analysis of the microstructure of the sample surface by scanning electron microscopy before and after implantation revealed bioresorption of the PLLA polymer phase and generation of collagen fibers at the sites of implanted bioresorptive PLLA. A mixture of autologous bone powder and HAp/PLLA biocomposite was also examined. After implantation, the same final products as in the case of HAp/PLLA composite biomaterial used alone were found.",
publisher = "Elsevier BV",
journal = "Biomaterials",
title = "A study of HAp/PLLA composite as a substitute for bone powder, using FT-IR spectroscopy",
pages = "571-575",
volume = "22",
number = "6",
doi = "10.1016/S0142-9612(00)00215-5",
url = "https://hdl.handle.net/21.15107/rcub_dais_14359"
}

Ignjatović, N., Savić, V., Najman, S., Plavšić, M.,& Uskoković, D.. (2001). A study of HAp/PLLA composite as a substitute for bone powder, using FT-IR spectroscopy. in Biomaterials
Elsevier BV., 22(6), 571-575.
https://doi.org/10.1016/S0142-9612(00)00215-5
https://hdl.handle.net/21.15107/rcub_dais_14359

Ignjatović N, Savić V, Najman S, Plavšić M, Uskoković D. A study of HAp/PLLA composite as a substitute for bone powder, using FT-IR spectroscopy. in Biomaterials. 2001;22(6):571-575.
doi:10.1016/S0142-9612(00)00215-5
https://hdl.handle.net/21.15107/rcub_dais_14359 .

Ignjatović, Nenad, Savić, Vojin, Najman, Stevo, Plavšić, Milenko, Uskoković, Dragan, "A study of HAp/PLLA composite as a substitute for bone powder, using FT-IR spectroscopy" in Biomaterials, 22, no. 6 (2001):571-575,
https://doi.org/10.1016/S0142-9612(00)00215-5 .,
https://hdl.handle.net/21.15107/rcub_dais_14359 .

TY  - CONF
AU  - Ignjatović, Nenad
AU  - Plavšić, Milenko
AU  - Najman, Stevo
AU  - Savić, Vojin
AU  - Uskoković, Dragan
PY  - 2000
UR  - https://dais.sanu.ac.rs/123456789/3859
AB  - Hydroxyapatite/poly-L-lactide (HAp/PLLA) composite biomaterial with PLLA of 50,000 and 430,000 g/mole molecular weight was studied in vivo. The biocomposite with PLLA of both molecular weights was implanted into mice and after 1 and 3 weeks removed from their organisms and analyzed by the FT-IR spectroscopy. After one week of testing in vivo, the implanted samples gave spectra in which absorption bands arising from new-formed functional groups of amine and peptide can be seen. Analysis of the spectra revealed faster formation of peptide compounds when the biocomposite with PLLA of lower molecular weight was used. After 3 weeks, the spectra of the biocomposite of both compositions were registered with pronounced absorption bands at about 3420 and 1650 cm-1 assigned to new-generated collagen, a component of the extracellular connective-tissue matrix. Also, in the case of the biocomposite sample with PLLA of lower molecular weight, disappearance of the previously present absorption band at about 1760 cm-1 originating from the C double bond O group of PLLA indicates complete bioresorption of the PLLA used. Analysis of the microstructures of the sample surfaces by scanning electron microscopy before and after implantation revealed bioresorption of the PLLA polymer phase in the system with PLLA of lower molecular weight and generation of collagen fibers at the sites of implanted bioresorptive PLLA. A mixture of autologous bone powder and HAp/PLLA biocomposite was also examined. After implantation, the same final products as in the case of HAp/PLLA composite biomaterial alone were found.
PB  - Uetikon-Zuerich : Trans Tech Publ
C3  - Trends in Advanced Materials and Processes
T1  - Analysis of in vivo substitution of bone tissue by HAp/PLLA composite biomaterial with PLLA of different molecular weights using FTIR spectroscopy
SP  - 143
EP  - 150
UR  - https://hdl.handle.net/21.15107/rcub_dais_3859
ER  - 

@conference{
author = "Ignjatović, Nenad and Plavšić, Milenko and Najman, Stevo and Savić, Vojin and Uskoković, Dragan",
year = "2000",
abstract = "Hydroxyapatite/poly-L-lactide (HAp/PLLA) composite biomaterial with PLLA of 50,000 and 430,000 g/mole molecular weight was studied in vivo. The biocomposite with PLLA of both molecular weights was implanted into mice and after 1 and 3 weeks removed from their organisms and analyzed by the FT-IR spectroscopy. After one week of testing in vivo, the implanted samples gave spectra in which absorption bands arising from new-formed functional groups of amine and peptide can be seen. Analysis of the spectra revealed faster formation of peptide compounds when the biocomposite with PLLA of lower molecular weight was used. After 3 weeks, the spectra of the biocomposite of both compositions were registered with pronounced absorption bands at about 3420 and 1650 cm-1 assigned to new-generated collagen, a component of the extracellular connective-tissue matrix. Also, in the case of the biocomposite sample with PLLA of lower molecular weight, disappearance of the previously present absorption band at about 1760 cm-1 originating from the C double bond O group of PLLA indicates complete bioresorption of the PLLA used. Analysis of the microstructures of the sample surfaces by scanning electron microscopy before and after implantation revealed bioresorption of the PLLA polymer phase in the system with PLLA of lower molecular weight and generation of collagen fibers at the sites of implanted bioresorptive PLLA. A mixture of autologous bone powder and HAp/PLLA biocomposite was also examined. After implantation, the same final products as in the case of HAp/PLLA composite biomaterial alone were found.",
publisher = "Uetikon-Zuerich : Trans Tech Publ",
journal = "Trends in Advanced Materials and Processes",
title = "Analysis of in vivo substitution of bone tissue by HAp/PLLA composite biomaterial with PLLA of different molecular weights using FTIR spectroscopy",
pages = "143-150",
url = "https://hdl.handle.net/21.15107/rcub_dais_3859"
}

Ignjatović, N., Plavšić, M., Najman, S., Savić, V.,& Uskoković, D.. (2000). Analysis of in vivo substitution of bone tissue by HAp/PLLA composite biomaterial with PLLA of different molecular weights using FTIR spectroscopy. in Trends in Advanced Materials and Processes
Uetikon-Zuerich : Trans Tech Publ., 143-150.
https://hdl.handle.net/21.15107/rcub_dais_3859

Ignjatović N, Plavšić M, Najman S, Savić V, Uskoković D. Analysis of in vivo substitution of bone tissue by HAp/PLLA composite biomaterial with PLLA of different molecular weights using FTIR spectroscopy. in Trends in Advanced Materials and Processes. 2000;:143-150.
https://hdl.handle.net/21.15107/rcub_dais_3859 .

Ignjatović, Nenad, Plavšić, Milenko, Najman, Stevo, Savić, Vojin, Uskoković, Dragan, "Analysis of in vivo substitution of bone tissue by HAp/PLLA composite biomaterial with PLLA of different molecular weights using FTIR spectroscopy" in Trends in Advanced Materials and Processes (2000):143-150,
https://hdl.handle.net/21.15107/rcub_dais_3859 .