TY  - CONF
AU  - Janaćković, Đorđe
AU  - Janković, Ivona
AU  - Petrović, R
AU  - Kostić-Gvozdenović, L.
AU  - Milonjić, Slobodan
AU  - Uskoković, Dragan
PY  - 2003
UR  - https://dais.sanu.ac.rs/123456789/3285
AB  - In this paper surface properties of calcium-hydroxyapatite, synthesized by modified hydrothermal reaction of urea and Ca(EDTA)(2-) in phosphate solutions, as well as the dependence of calcium hydroxyapatite dispersion stability on pH were determined. The specific surface area of calcium-hydroxyapatite was experimentally found to be 67 m(2)/g. The point of zero charge (PZC) of indifferent KCl electrolyte of 6.8 +/- 0.1 was determined by the batch equilibration method. From the dependence of surface charge density on pH and electrolyte concentration, the intrinsic equilibrium constant of surface groups p K-a2(int) was determined to be 8.3 +/- 0.1, while p K-a1(int) calculated from the pK(a2)(int) and point of zero charge values, is 5.3 +/- 0.1. Hydroxyapatite suspension stability was investigated, in the pH range from 7 to 12, it was revealed that the most stable dispersion at pH 10.
C3  - 15th International Symposium on Ceramics in Medicine, Dec 04-08, 2002, Univ Technol, Sydney, Australia
T1  - Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates
SP  - 437
EP  - 440
DO  - 10.4028/www.scientific.net/KEM.240-242.437
UR  - https://hdl.handle.net/21.15107/rcub_dais_3285
ER  - 

@conference{
author = "Janaćković, Đorđe and Janković, Ivona and Petrović, R and Kostić-Gvozdenović, L. and Milonjić, Slobodan and Uskoković, Dragan",
year = "2003",
abstract = "In this paper surface properties of calcium-hydroxyapatite, synthesized by modified hydrothermal reaction of urea and Ca(EDTA)(2-) in phosphate solutions, as well as the dependence of calcium hydroxyapatite dispersion stability on pH were determined. The specific surface area of calcium-hydroxyapatite was experimentally found to be 67 m(2)/g. The point of zero charge (PZC) of indifferent KCl electrolyte of 6.8 +/- 0.1 was determined by the batch equilibration method. From the dependence of surface charge density on pH and electrolyte concentration, the intrinsic equilibrium constant of surface groups p K-a2(int) was determined to be 8.3 +/- 0.1, while p K-a1(int) calculated from the pK(a2)(int) and point of zero charge values, is 5.3 +/- 0.1. Hydroxyapatite suspension stability was investigated, in the pH range from 7 to 12, it was revealed that the most stable dispersion at pH 10.",
journal = "15th International Symposium on Ceramics in Medicine, Dec 04-08, 2002, Univ Technol, Sydney, Australia",
title = "Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates",
pages = "437-440",
doi = "10.4028/www.scientific.net/KEM.240-242.437",
url = "https://hdl.handle.net/21.15107/rcub_dais_3285"
}

Janaćković, Đ., Janković, I., Petrović, R., Kostić-Gvozdenović, L., Milonjić, S.,& Uskoković, D.. (2003). Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates. in 15th International Symposium on Ceramics in Medicine, Dec 04-08, 2002, Univ Technol, Sydney, Australia, 437-440.
https://doi.org/10.4028/www.scientific.net/KEM.240-242.437
https://hdl.handle.net/21.15107/rcub_dais_3285

Janaćković Đ, Janković I, Petrović R, Kostić-Gvozdenović L, Milonjić S, Uskoković D. Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates. in 15th International Symposium on Ceramics in Medicine, Dec 04-08, 2002, Univ Technol, Sydney, Australia. 2003;:437-440.
doi:10.4028/www.scientific.net/KEM.240-242.437
https://hdl.handle.net/21.15107/rcub_dais_3285 .

Janaćković, Đorđe, Janković, Ivona, Petrović, R, Kostić-Gvozdenović, L., Milonjić, Slobodan, Uskoković, Dragan, "Surface properties of HAP particles obtained by hydrothermal decomposition of urea and calcium-EDTA chelates" in 15th International Symposium on Ceramics in Medicine, Dec 04-08, 2002, Univ Technol, Sydney, Australia (2003):437-440,
https://doi.org/10.4028/www.scientific.net/KEM.240-242.437 .,
https://hdl.handle.net/21.15107/rcub_dais_3285 .

TY  - CONF
AU  - Todorović, D. M.
AU  - Nikolić, Pantelija M.
AU  - Smiljanić, M.
AU  - Petrović, R.
AU  - Bojičić, Aleksandar I.
AU  - Vasiljević Radović, Dana
AU  - Radulović, Katarina
PY  - 2000
UR  - https://dais.sanu.ac.rs/123456789/3868
AB  - The photoacoustic effect in metal-semiconductor system, i.e., the influence of Schottky barrier on the thermal and electronic transport processes in semiconductor was investigated. The amplitude and phase spectra were measured for dependence on the modulation frequency of excitation optical beam, using the PA frequency transmission technique. Thermal, elastic and electronic transport parameters were obtained by the analysis of experimental and theoretical PA signals, including the Schottky barrier effect, for a metal film-semiconductor substrate sample. © 1999 IEEE.
PB  - IEEE
C3  - 2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings
T1  - The Schottky barrier contribution to photoacoustic effect in Au-Si system
SP  - 189
EP  - 192
VL  - 1
DO  - 10.1109/ICMEL.2000.840552
UR  - https://hdl.handle.net/21.15107/rcub_dais_3868
ER  - 

@conference{
author = "Todorović, D. M. and Nikolić, Pantelija M. and Smiljanić, M. and Petrović, R. and Bojičić, Aleksandar I. and Vasiljević Radović, Dana and Radulović, Katarina",
year = "2000",
abstract = "The photoacoustic effect in metal-semiconductor system, i.e., the influence of Schottky barrier on the thermal and electronic transport processes in semiconductor was investigated. The amplitude and phase spectra were measured for dependence on the modulation frequency of excitation optical beam, using the PA frequency transmission technique. Thermal, elastic and electronic transport parameters were obtained by the analysis of experimental and theoretical PA signals, including the Schottky barrier effect, for a metal film-semiconductor substrate sample. © 1999 IEEE.",
publisher = "IEEE",
journal = "2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings",
title = "The Schottky barrier contribution to photoacoustic effect in Au-Si system",
pages = "189-192",
volume = "1",
doi = "10.1109/ICMEL.2000.840552",
url = "https://hdl.handle.net/21.15107/rcub_dais_3868"
}

Todorović, D. M., Nikolić, P. M., Smiljanić, M., Petrović, R., Bojičić, A. I., Vasiljević Radović, D.,& Radulović, K.. (2000). The Schottky barrier contribution to photoacoustic effect in Au-Si system. in 2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings
IEEE., 1, 189-192.
https://doi.org/10.1109/ICMEL.2000.840552
https://hdl.handle.net/21.15107/rcub_dais_3868

Todorović DM, Nikolić PM, Smiljanić M, Petrović R, Bojičić AI, Vasiljević Radović D, Radulović K. The Schottky barrier contribution to photoacoustic effect in Au-Si system. in 2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings. 2000;1:189-192.
doi:10.1109/ICMEL.2000.840552
https://hdl.handle.net/21.15107/rcub_dais_3868 .

Todorović, D. M., Nikolić, Pantelija M., Smiljanić, M., Petrović, R., Bojičić, Aleksandar I., Vasiljević Radović, Dana, Radulović, Katarina, "The Schottky barrier contribution to photoacoustic effect in Au-Si system" in 2000 22nd International Conference on Microelectronics, MIEL 2000 - Proceedings, 1 (2000):189-192,
https://doi.org/10.1109/ICMEL.2000.840552 .,
https://hdl.handle.net/21.15107/rcub_dais_3868 .