TY  - JOUR
AU  - Lazarević, Slavica
AU  - Janković-Častvan, Ivona
AU  - Tanasković, Dušanka
AU  - Pavićević, Vladimir
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1240
AB  - The sorption of Pb2+, Cd2+, and Sr2+ ions from aqueous solutions by carbonate-substituted calcium hydroxyapatite (HAP) obtained by the hydrothermal decomposition of urea and calcium-ethylenediaminetetraacetic acid chelates was investigated. The shift of the point of zero charge (pH(pzc)) of HAP toward lower pH values in solutions of Pb2+ and Cd2+ ions, which was more pronounced for Pb2+ ions than for Cd2+ ions, indicates that specific adsorption of these cations on HAP had occurred. There was no shift of the pH(pzc) in the solution containing Sr2+ ions, suggesting that specific adsorption of this cation on HAP had not occurred. The sorption isotherms suggest that the sequence of the efficiency of sorption by HAP is Pb2+ gt Cd2+ gt Sr2+. Ion exchange is the main mechanism of removal of Sr2+ ions from aqueous solution by apatite, whereas during the sorption of Cd2+ ions, this mechanism occurs simultaneously with the process of specific adsorption. The interaction of the apatite with Pb2+ ions includes the previously mentioned mechanisms and dissolution of the apatite, followed by the precipitation of lead hydroxyapatite.
PB  - Asce-Amer Soc Civil Engineers, Reston
T2  - Journal of Environmental Engineering
T1  - Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method
EP  - 688
IS  - 8
SP  - 683
VL  - 134
DO  - 10.1061/(ASCE)0733-9372(2008)134:8(683)
ER  - 

@article{
author = "Lazarević, Slavica and Janković-Častvan, Ivona and Tanasković, Dušanka and Pavićević, Vladimir and Janaćković, Đorđe and Petrović, Rada",
year = "2008",
abstract = "The sorption of Pb2+, Cd2+, and Sr2+ ions from aqueous solutions by carbonate-substituted calcium hydroxyapatite (HAP) obtained by the hydrothermal decomposition of urea and calcium-ethylenediaminetetraacetic acid chelates was investigated. The shift of the point of zero charge (pH(pzc)) of HAP toward lower pH values in solutions of Pb2+ and Cd2+ ions, which was more pronounced for Pb2+ ions than for Cd2+ ions, indicates that specific adsorption of these cations on HAP had occurred. There was no shift of the pH(pzc) in the solution containing Sr2+ ions, suggesting that specific adsorption of this cation on HAP had not occurred. The sorption isotherms suggest that the sequence of the efficiency of sorption by HAP is Pb2+ gt Cd2+ gt Sr2+. Ion exchange is the main mechanism of removal of Sr2+ ions from aqueous solution by apatite, whereas during the sorption of Cd2+ ions, this mechanism occurs simultaneously with the process of specific adsorption. The interaction of the apatite with Pb2+ ions includes the previously mentioned mechanisms and dissolution of the apatite, followed by the precipitation of lead hydroxyapatite.",
publisher = "Asce-Amer Soc Civil Engineers, Reston",
journal = "Journal of Environmental Engineering",
title = "Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method",
pages = "688-683",
number = "8",
volume = "134",
doi = "10.1061/(ASCE)0733-9372(2008)134:8(683)"
}

Lazarević, S., Janković-Častvan, I., Tanasković, D., Pavićević, V., Janaćković, Đ.,& Petrović, R.. (2008). Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method. in Journal of Environmental Engineering
Asce-Amer Soc Civil Engineers, Reston., 134(8), 683-688.
https://doi.org/10.1061/(ASCE)0733-9372(2008)134:8(683)

Lazarević S, Janković-Častvan I, Tanasković D, Pavićević V, Janaćković Đ, Petrović R. Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method. in Journal of Environmental Engineering. 2008;134(8):683-688.
doi:10.1061/(ASCE)0733-9372(2008)134:8(683) .

Lazarević, Slavica, Janković-Častvan, Ivona, Tanasković, Dušanka, Pavićević, Vladimir, Janaćković, Đorđe, Petrović, Rada, "Sorption of Pb2+, Cd2+, and Sr2+ ions on calcium hydroxyapatite powder obtained by the hydrothermal method" in Journal of Environmental Engineering, 134, no. 8 (2008):683-688,
https://doi.org/10.1061/(ASCE)0733-9372(2008)134:8(683) . .

TY  - JOUR
AU  - Floroian, L.
AU  - Savu, B.
AU  - Stanciu, G.
AU  - Popescu, A. C.
AU  - Sima, F.
AU  - Mihailescu, Ion N.
AU  - Mustata, R.
AU  - Sima, L. E.
AU  - Petrescu, M.
AU  - Tanasković, Dušanka
AU  - Janaćković, Đorđe
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1230
AB  - We report the synthesis by pulsed laser deposition of thin structures of two bioactive glasses belonging to the SiO2-Na2O-K2O-CaO-MgO-P2O5 system, on medical grade Ti substrates. We evaluated their biocompatibility after immersion in simulated body fluids and by performing cells adhesion tests. The Films were characterized by confocal scanning laser microscopy and Fourier transform infrared spectrometry, before and after 30 and 46 days immersion in fluids. Our studies demonstrated that deposited coatings were degraded in simulated fluids. A new apatite layer was synthesized by ions changing with the fluid during the decomposition of bioglasses. We investigated after immersion in fluids cells adhesion and the cytoskelet organization of synthesized structures, by fluorescence microscopy. A good adhesion to bioglass coatings was evidenced.
PB  - Elsevier, Amsterdam
T2  - Applied Surface Science
T1  - Nanostructured bioglass thin films synthesized by pulsed laser deposition: CSLM, FTIR investigations and in vitro biotests
EP  - 3062
IS  - 5
SP  - 3056
VL  - 255
DO  - 10.1016/j.apsusc.2008.08.105
ER  - 

@article{
author = "Floroian, L. and Savu, B. and Stanciu, G. and Popescu, A. C. and Sima, F. and Mihailescu, Ion N. and Mustata, R. and Sima, L. E. and Petrescu, M. and Tanasković, Dušanka and Janaćković, Đorđe",
year = "2008",
abstract = "We report the synthesis by pulsed laser deposition of thin structures of two bioactive glasses belonging to the SiO2-Na2O-K2O-CaO-MgO-P2O5 system, on medical grade Ti substrates. We evaluated their biocompatibility after immersion in simulated body fluids and by performing cells adhesion tests. The Films were characterized by confocal scanning laser microscopy and Fourier transform infrared spectrometry, before and after 30 and 46 days immersion in fluids. Our studies demonstrated that deposited coatings were degraded in simulated fluids. A new apatite layer was synthesized by ions changing with the fluid during the decomposition of bioglasses. We investigated after immersion in fluids cells adhesion and the cytoskelet organization of synthesized structures, by fluorescence microscopy. A good adhesion to bioglass coatings was evidenced.",
publisher = "Elsevier, Amsterdam",
journal = "Applied Surface Science",
title = "Nanostructured bioglass thin films synthesized by pulsed laser deposition: CSLM, FTIR investigations and in vitro biotests",
pages = "3062-3056",
number = "5",
volume = "255",
doi = "10.1016/j.apsusc.2008.08.105"
}

Floroian, L., Savu, B., Stanciu, G., Popescu, A. C., Sima, F., Mihailescu, I. N., Mustata, R., Sima, L. E., Petrescu, M., Tanasković, D.,& Janaćković, Đ.. (2008). Nanostructured bioglass thin films synthesized by pulsed laser deposition: CSLM, FTIR investigations and in vitro biotests. in Applied Surface Science
Elsevier, Amsterdam., 255(5), 3056-3062.
https://doi.org/10.1016/j.apsusc.2008.08.105

Floroian L, Savu B, Stanciu G, Popescu AC, Sima F, Mihailescu IN, Mustata R, Sima LE, Petrescu M, Tanasković D, Janaćković Đ. Nanostructured bioglass thin films synthesized by pulsed laser deposition: CSLM, FTIR investigations and in vitro biotests. in Applied Surface Science. 2008;255(5):3056-3062.
doi:10.1016/j.apsusc.2008.08.105 .

Floroian, L., Savu, B., Stanciu, G., Popescu, A. C., Sima, F., Mihailescu, Ion N., Mustata, R., Sima, L. E., Petrescu, M., Tanasković, Dušanka, Janaćković, Đorđe, "Nanostructured bioglass thin films synthesized by pulsed laser deposition: CSLM, FTIR investigations and in vitro biotests" in Applied Surface Science, 255, no. 5 (2008):3056-3062,
https://doi.org/10.1016/j.apsusc.2008.08.105 . .

TY  - JOUR
AU  - Tanasković, Dušanka
AU  - Veljović, Đorđe
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
AU  - Mitrić, Miodrag
AU  - Cojanu, C.
AU  - Ristoscu, Carmen
AU  - Mihailescu, Ion N.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1220
AB  - Pulsed laser deposition was used to obtain functionally graded bioactive glass coatings on titanium substrates. An UV KrF* (lambda=248 nm, tau gt 7 ns) excimer laser was used for the multi-pulse irradiation of the targets. The depositions were performed in oxygen while keeping substrate temperature at 400 degrees C. We used sintered glass targets in the system SiO2-Na2O-K2O-CaO-MgO-P2O5 that differed in SiO2 content, which was either 57 wt.% (6P57) or 61 wt.% (6P61). A glass 6P61 was used as the first layer in direct contact with the metallic substrate, while the outer bioactive layer was made of glass 6P57. Both the bioactive coatings and the bulk glasses were analyzed by Fourier transform infrared spectrometry (FTIR), grazing incidence X-ray diffraction (GIXRD), and scanning electron microscopy (SEM). The FTIR spectra of the glass powders and glass coatings showed the main vibration modes of the Si-O-Si groups. GIXRD analysis confirmed that the glass coatings had an amorphous structure. The SEM micrographs of the glass coatings showed the films to consist of droplets with diameters ranging from 0.2 to 5 Pm. SEM was used to determine the rate of apatite formation on the coating when exposed to simulated body fluid (SBF) solution for 7 days. We demonstrated that pulsed laser deposition leads to good glass-metal adhesion on the substrate and well attached bioactive particles on the surface. We consider therefore this method appropriate for forming implants that can develop an apatite layer after immersion in SBF.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Key Engineering Materials
T1  - Double-layer bioactive glass coatings obtained by pulsed laser deposition
EP  - 280
SP  - 277
VL  - 361-363 I
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6718
ER  - 

@article{
author = "Tanasković, Dušanka and Veljović, Đorđe and Petrović, Rada and Janaćković, Đorđe and Mitrić, Miodrag and Cojanu, C. and Ristoscu, Carmen and Mihailescu, Ion N.",
year = "2008",
abstract = "Pulsed laser deposition was used to obtain functionally graded bioactive glass coatings on titanium substrates. An UV KrF* (lambda=248 nm, tau gt 7 ns) excimer laser was used for the multi-pulse irradiation of the targets. The depositions were performed in oxygen while keeping substrate temperature at 400 degrees C. We used sintered glass targets in the system SiO2-Na2O-K2O-CaO-MgO-P2O5 that differed in SiO2 content, which was either 57 wt.% (6P57) or 61 wt.% (6P61). A glass 6P61 was used as the first layer in direct contact with the metallic substrate, while the outer bioactive layer was made of glass 6P57. Both the bioactive coatings and the bulk glasses were analyzed by Fourier transform infrared spectrometry (FTIR), grazing incidence X-ray diffraction (GIXRD), and scanning electron microscopy (SEM). The FTIR spectra of the glass powders and glass coatings showed the main vibration modes of the Si-O-Si groups. GIXRD analysis confirmed that the glass coatings had an amorphous structure. The SEM micrographs of the glass coatings showed the films to consist of droplets with diameters ranging from 0.2 to 5 Pm. SEM was used to determine the rate of apatite formation on the coating when exposed to simulated body fluid (SBF) solution for 7 days. We demonstrated that pulsed laser deposition leads to good glass-metal adhesion on the substrate and well attached bioactive particles on the surface. We consider therefore this method appropriate for forming implants that can develop an apatite layer after immersion in SBF.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Key Engineering Materials",
title = "Double-layer bioactive glass coatings obtained by pulsed laser deposition",
pages = "280-277",
volume = "361-363 I",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6718"
}

Tanasković, D., Veljović, Đ., Petrović, R., Janaćković, Đ., Mitrić, M., Cojanu, C., Ristoscu, C.,& Mihailescu, I. N.. (2008). Double-layer bioactive glass coatings obtained by pulsed laser deposition. in Key Engineering Materials
Trans Tech Publications Ltd, Durnten-Zurich., 361-363 I, 277-280.
https://hdl.handle.net/21.15107/rcub_vinar_6718

Tanasković D, Veljović Đ, Petrović R, Janaćković Đ, Mitrić M, Cojanu C, Ristoscu C, Mihailescu IN. Double-layer bioactive glass coatings obtained by pulsed laser deposition. in Key Engineering Materials. 2008;361-363 I:277-280.
https://hdl.handle.net/21.15107/rcub_vinar_6718 .

Tanasković, Dušanka, Veljović, Đorđe, Petrović, Rada, Janaćković, Đorđe, Mitrić, Miodrag, Cojanu, C., Ristoscu, Carmen, Mihailescu, Ion N., "Double-layer bioactive glass coatings obtained by pulsed laser deposition" in Key Engineering Materials, 361-363 I (2008):277-280,
https://hdl.handle.net/21.15107/rcub_vinar_6718 .

TY  - JOUR
AU  - Janković-Častvan, Ivona
AU  - Lazarević, Slavica
AU  - Jordović, Branka
AU  - Petrović, R.
AU  - Tanasković, Dušanka
AU  - Janaćković, Đorđe
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1180
AB  - Cordierite ceramic material, due to its properties such as low thermal expansion coefficient, low dielectric constant and high specific resistivity, could be used as an insulating material in high-frequency electronics. as well as a substrate for integrated circuits and electronic modules. In this paper, cordierite (2MgO center dot 2A1(2)O(3)center dot 5SiO(2)) was synthesized by the non-hydrolytic sol-gel process combined with solvothermal treatment starting from aluminium chloride, TEOS and magnesium chloride dissolved in absolute ethanol. Crystallization of mu-cordierite from gel occurred at temperatures between 900 and 1000 degrees C and a higher calcination temperature resulted in the transformation of mu-cordierite to alpha-cordierite. Cordierite material obtained by sintering of powder in the temperature range from 1400 to 1450 degrees C showed values of the dielectric constants from 7.93 to 3.78 and values of dielectric loss tangents from 0.049 to 0.001.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - Electrical properties of cordierite obtained by non-hydrolytic sol-gel method
EP  - 3661
IS  - 13-15
SP  - 3659
VL  - 27
DO  - 10.1016/j.jeurceramsoc.2007.02.018
ER  - 

@article{
author = "Janković-Častvan, Ivona and Lazarević, Slavica and Jordović, Branka and Petrović, R. and Tanasković, Dušanka and Janaćković, Đorđe",
year = "2007",
abstract = "Cordierite ceramic material, due to its properties such as low thermal expansion coefficient, low dielectric constant and high specific resistivity, could be used as an insulating material in high-frequency electronics. as well as a substrate for integrated circuits and electronic modules. In this paper, cordierite (2MgO center dot 2A1(2)O(3)center dot 5SiO(2)) was synthesized by the non-hydrolytic sol-gel process combined with solvothermal treatment starting from aluminium chloride, TEOS and magnesium chloride dissolved in absolute ethanol. Crystallization of mu-cordierite from gel occurred at temperatures between 900 and 1000 degrees C and a higher calcination temperature resulted in the transformation of mu-cordierite to alpha-cordierite. Cordierite material obtained by sintering of powder in the temperature range from 1400 to 1450 degrees C showed values of the dielectric constants from 7.93 to 3.78 and values of dielectric loss tangents from 0.049 to 0.001.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "Electrical properties of cordierite obtained by non-hydrolytic sol-gel method",
pages = "3661-3659",
number = "13-15",
volume = "27",
doi = "10.1016/j.jeurceramsoc.2007.02.018"
}

Janković-Častvan, I., Lazarević, S., Jordović, B., Petrović, R., Tanasković, D.,& Janaćković, Đ.. (2007). Electrical properties of cordierite obtained by non-hydrolytic sol-gel method. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 27(13-15), 3659-3661.
https://doi.org/10.1016/j.jeurceramsoc.2007.02.018

Janković-Častvan I, Lazarević S, Jordović B, Petrović R, Tanasković D, Janaćković Đ. Electrical properties of cordierite obtained by non-hydrolytic sol-gel method. in Journal of the European Ceramic Society. 2007;27(13-15):3659-3661.
doi:10.1016/j.jeurceramsoc.2007.02.018 .

Janković-Častvan, Ivona, Lazarević, Slavica, Jordović, Branka, Petrović, R., Tanasković, Dušanka, Janaćković, Đorđe, "Electrical properties of cordierite obtained by non-hydrolytic sol-gel method" in Journal of the European Ceramic Society, 27, no. 13-15 (2007):3659-3661,
https://doi.org/10.1016/j.jeurceramsoc.2007.02.018 . .

TY  - JOUR
AU  - Janković-Častvan, Ivona
AU  - Lazarević, Slavica
AU  - Tanasković, Dušanka
AU  - Orlović, Aleksandar
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1172
AB  - Cordierite gel was synthesized by non-hydrolytic sol-gel route, starting from aluminum chloride, TEOS and magnesium chloride dissolved in absolute ethanol. Crystallization of p.-cordierite from gel at temperatures between 900 and 1000 degrees C was confirmed by differential thermal analyses, X-ray and FTIR spectroscopy. Higher calcination temperature resulted in the transformation of mu- to alpha-cordierite. The value of Avrami parameter n = 2.23 for the mu-cordierite crystallization indicates contribution of different simultaneous mechanisms: homogeneous nucleation and three-dimensional crystallite growth due to homogeneity of gel and surface crystallization due to submicron particles of the gel.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Phase transformation in cordierite gel synthesized by non-hydrolytic sol-gel route
EP  - 1268
IS  - 7
SP  - 1263
VL  - 33
DO  - 10.1016/j.ceramint.2006.05.003
ER  - 

@article{
author = "Janković-Častvan, Ivona and Lazarević, Slavica and Tanasković, Dušanka and Orlović, Aleksandar and Petrović, Rada and Janaćković, Đorđe",
year = "2007",
abstract = "Cordierite gel was synthesized by non-hydrolytic sol-gel route, starting from aluminum chloride, TEOS and magnesium chloride dissolved in absolute ethanol. Crystallization of p.-cordierite from gel at temperatures between 900 and 1000 degrees C was confirmed by differential thermal analyses, X-ray and FTIR spectroscopy. Higher calcination temperature resulted in the transformation of mu- to alpha-cordierite. The value of Avrami parameter n = 2.23 for the mu-cordierite crystallization indicates contribution of different simultaneous mechanisms: homogeneous nucleation and three-dimensional crystallite growth due to homogeneity of gel and surface crystallization due to submicron particles of the gel.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Phase transformation in cordierite gel synthesized by non-hydrolytic sol-gel route",
pages = "1268-1263",
number = "7",
volume = "33",
doi = "10.1016/j.ceramint.2006.05.003"
}

Janković-Častvan, I., Lazarević, S., Tanasković, D., Orlović, A., Petrović, R.,& Janaćković, Đ.. (2007). Phase transformation in cordierite gel synthesized by non-hydrolytic sol-gel route. in Ceramics International
Elsevier Sci Ltd, Oxford., 33(7), 1263-1268.
https://doi.org/10.1016/j.ceramint.2006.05.003

Janković-Častvan I, Lazarević S, Tanasković D, Orlović A, Petrović R, Janaćković Đ. Phase transformation in cordierite gel synthesized by non-hydrolytic sol-gel route. in Ceramics International. 2007;33(7):1263-1268.
doi:10.1016/j.ceramint.2006.05.003 .

Janković-Častvan, Ivona, Lazarević, Slavica, Tanasković, Dušanka, Orlović, Aleksandar, Petrović, Rada, Janaćković, Đorđe, "Phase transformation in cordierite gel synthesized by non-hydrolytic sol-gel route" in Ceramics International, 33, no. 7 (2007):1263-1268,
https://doi.org/10.1016/j.ceramint.2006.05.003 . .

TY  - JOUR
AU  - Jokić, Bojan
AU  - Tanasković, Dušanka
AU  - Janković-Častvan, Ivona
AU  - Drmanić, Saša
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1090
AB  - Nanosized calcium hydroxyapatite particles were synthesized by the catalytic decomposition of urea with urease. The influence of the synthesis parameters, i.e., temperature and ratio of the reagents/urease concentrations, on the size and morphology of the hydroxyapatite particles were investigated. As reagents for the synthesis of hydroxyapatite, various amounts of CaCl2, NaH2PO4, urea, and urease were used. The urease-catalyzed decomposition of urea leads to the homogeneous precipitation of hydroxyapatite because of the release of OH- ions during the hydrolysis of urea. In the same process, CO32- ions are also released and incorporated into the crystal structure of the hydroxyapatite. In the temperature range from 30-40 degrees C, it was found that low crystalline carbonate hydroxyapatite was formed in all cases. It was found that decreasing the ratio of the concentrations of the reagents to the urease concentration leads to decrease in the particle size to below 100 nm and the morphology changes from leafy-like to spherical.
PB  - Cambridge Univ Press, New York
T2  - Journal of Materials Research
T1  - Synthesis of nanosized calcium hydroxyapatite particles by the catalytic decomposition of urea with urease
EP  - 1161
IS  - 5
SP  - 1156
VL  - 22
DO  - 10.1557/JMR.2007.0170
ER  - 

@article{
author = "Jokić, Bojan and Tanasković, Dušanka and Janković-Častvan, Ivona and Drmanić, Saša and Petrović, Rada and Janaćković, Đorđe",
year = "2007",
abstract = "Nanosized calcium hydroxyapatite particles were synthesized by the catalytic decomposition of urea with urease. The influence of the synthesis parameters, i.e., temperature and ratio of the reagents/urease concentrations, on the size and morphology of the hydroxyapatite particles were investigated. As reagents for the synthesis of hydroxyapatite, various amounts of CaCl2, NaH2PO4, urea, and urease were used. The urease-catalyzed decomposition of urea leads to the homogeneous precipitation of hydroxyapatite because of the release of OH- ions during the hydrolysis of urea. In the same process, CO32- ions are also released and incorporated into the crystal structure of the hydroxyapatite. In the temperature range from 30-40 degrees C, it was found that low crystalline carbonate hydroxyapatite was formed in all cases. It was found that decreasing the ratio of the concentrations of the reagents to the urease concentration leads to decrease in the particle size to below 100 nm and the morphology changes from leafy-like to spherical.",
publisher = "Cambridge Univ Press, New York",
journal = "Journal of Materials Research",
title = "Synthesis of nanosized calcium hydroxyapatite particles by the catalytic decomposition of urea with urease",
pages = "1161-1156",
number = "5",
volume = "22",
doi = "10.1557/JMR.2007.0170"
}

Jokić, B., Tanasković, D., Janković-Častvan, I., Drmanić, S., Petrović, R.,& Janaćković, Đ.. (2007). Synthesis of nanosized calcium hydroxyapatite particles by the catalytic decomposition of urea with urease. in Journal of Materials Research
Cambridge Univ Press, New York., 22(5), 1156-1161.
https://doi.org/10.1557/JMR.2007.0170

Jokić B, Tanasković D, Janković-Častvan I, Drmanić S, Petrović R, Janaćković Đ. Synthesis of nanosized calcium hydroxyapatite particles by the catalytic decomposition of urea with urease. in Journal of Materials Research. 2007;22(5):1156-1161.
doi:10.1557/JMR.2007.0170 .

Jokić, Bojan, Tanasković, Dušanka, Janković-Častvan, Ivona, Drmanić, Saša, Petrović, Rada, Janaćković, Đorđe, "Synthesis of nanosized calcium hydroxyapatite particles by the catalytic decomposition of urea with urease" in Journal of Materials Research, 22, no. 5 (2007):1156-1161,
https://doi.org/10.1557/JMR.2007.0170 . .

TY  - JOUR
AU  - Tanasković, Dušanka
AU  - Jokić, Bojan
AU  - Socol, Gabriel
AU  - Popescu, A. C.
AU  - Mihailescu, Ion N.
AU  - Petrović, Rada
AU  - Janaćković, Đorđe
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1149
AB  - Functionally graded glass-apatite multistructures were synthesized by pulsed laser deposition on Ti substrates. We used sintered targets of hydroxyapatite Ca-10(PO4)(6)(OH)(2), or bioglasses in the system SiO2-Na2O-K2O-CaO-MgO-P2O5 with SiO2 content of either 57 wt.% (6P57) or 61 wt.% (061). A UV KrF* (lambda = 248 nm, tau  gt  7 ns) excimer laser source was used for the multipulse laser ablation of the targets. The hydroxyapatite thin films were obtained in H2O Vapors, while the bioglass layers were deposited in O-2. Thin films of 6P61 were deposited in direct contact with Ti, because Ti and this glass have similar thermal expansion behaviors, which ensure good bioglass adhesion to the substrate. This glass, however, is not bioactive, so yet more depositions of 6P57 bioglass and/or hydroxyapatite thin films were performed. All structures with hydroxyapatite overcoating were post-treated in a flux of water vapors. The obtained multistructures were characterized by various techniques. Xray investigations of the coatings found small amounts of crystalline hydroxyapatite in the outer layers. The scanning electron microscopy analyses revealed homogeneous coatings with good adhesion to the Ti substrate. Our studies showed that the multistructures we had obtained were compatible with further use in biomimetic metallic implants with glass-apatite coating applications.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Surface Science
T1  - Synthesis of functionally graded bioactive glass-apatite multistructures on Ti substrates by pulsed laser deposition
EP  - 1282
IS  - 4
SP  - 1279
VL  - 254
DO  - 10.1016/j.apsusc.2007.08.009
ER  - 

@article{
author = "Tanasković, Dušanka and Jokić, Bojan and Socol, Gabriel and Popescu, A. C. and Mihailescu, Ion N. and Petrović, Rada and Janaćković, Đorđe",
year = "2007",
abstract = "Functionally graded glass-apatite multistructures were synthesized by pulsed laser deposition on Ti substrates. We used sintered targets of hydroxyapatite Ca-10(PO4)(6)(OH)(2), or bioglasses in the system SiO2-Na2O-K2O-CaO-MgO-P2O5 with SiO2 content of either 57 wt.% (6P57) or 61 wt.% (061). A UV KrF* (lambda = 248 nm, tau  gt  7 ns) excimer laser source was used for the multipulse laser ablation of the targets. The hydroxyapatite thin films were obtained in H2O Vapors, while the bioglass layers were deposited in O-2. Thin films of 6P61 were deposited in direct contact with Ti, because Ti and this glass have similar thermal expansion behaviors, which ensure good bioglass adhesion to the substrate. This glass, however, is not bioactive, so yet more depositions of 6P57 bioglass and/or hydroxyapatite thin films were performed. All structures with hydroxyapatite overcoating were post-treated in a flux of water vapors. The obtained multistructures were characterized by various techniques. Xray investigations of the coatings found small amounts of crystalline hydroxyapatite in the outer layers. The scanning electron microscopy analyses revealed homogeneous coatings with good adhesion to the Ti substrate. Our studies showed that the multistructures we had obtained were compatible with further use in biomimetic metallic implants with glass-apatite coating applications.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Surface Science",
title = "Synthesis of functionally graded bioactive glass-apatite multistructures on Ti substrates by pulsed laser deposition",
pages = "1282-1279",
number = "4",
volume = "254",
doi = "10.1016/j.apsusc.2007.08.009"
}

Tanasković, D., Jokić, B., Socol, G., Popescu, A. C., Mihailescu, I. N., Petrović, R.,& Janaćković, Đ.. (2007). Synthesis of functionally graded bioactive glass-apatite multistructures on Ti substrates by pulsed laser deposition. in Applied Surface Science
Elsevier Science Bv, Amsterdam., 254(4), 1279-1282.
https://doi.org/10.1016/j.apsusc.2007.08.009

Tanasković D, Jokić B, Socol G, Popescu AC, Mihailescu IN, Petrović R, Janaćković Đ. Synthesis of functionally graded bioactive glass-apatite multistructures on Ti substrates by pulsed laser deposition. in Applied Surface Science. 2007;254(4):1279-1282.
doi:10.1016/j.apsusc.2007.08.009 .

Tanasković, Dušanka, Jokić, Bojan, Socol, Gabriel, Popescu, A. C., Mihailescu, Ion N., Petrović, Rada, Janaćković, Đorđe, "Synthesis of functionally graded bioactive glass-apatite multistructures on Ti substrates by pulsed laser deposition" in Applied Surface Science, 254, no. 4 (2007):1279-1282,
https://doi.org/10.1016/j.apsusc.2007.08.009 . .

TY  - JOUR
AU  - Floroian, L.
AU  - Savu, B.
AU  - Sima, F.
AU  - Mihailescu, Ion N.
AU  - Tanasković, Dušanka
AU  - Janaćković, Đorđe
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1177
AB  - We report the successful pulsed laser deposition on medical grade Ti substrates of thin films made of two bioactive glasses in the SiO2 - Na2O- K2O - CaO - MgO - P2O5 system. The films were topographically and chemically characterized by confocal scanning laser microscopy and Fourier transform infrared spectrophotometry. Our studies proved that chemical composition was similar in the base material and deposited films. The latter were rather uniform and rough enough to favor enhanced biocompatibility.
PB  - Inst Materials Physics, Bucharest
T2  - Digest Journal of Nanomaterials and Biostructures
T1  - Synthesis and characterization of bioglass thin films
EP  - 291
IS  - 3
SP  - 285
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1177
ER  - 

@article{
author = "Floroian, L. and Savu, B. and Sima, F. and Mihailescu, Ion N. and Tanasković, Dušanka and Janaćković, Đorđe",
year = "2007",
abstract = "We report the successful pulsed laser deposition on medical grade Ti substrates of thin films made of two bioactive glasses in the SiO2 - Na2O- K2O - CaO - MgO - P2O5 system. The films were topographically and chemically characterized by confocal scanning laser microscopy and Fourier transform infrared spectrophotometry. Our studies proved that chemical composition was similar in the base material and deposited films. The latter were rather uniform and rough enough to favor enhanced biocompatibility.",
publisher = "Inst Materials Physics, Bucharest",
journal = "Digest Journal of Nanomaterials and Biostructures",
title = "Synthesis and characterization of bioglass thin films",
pages = "291-285",
number = "3",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1177"
}

Floroian, L., Savu, B., Sima, F., Mihailescu, I. N., Tanasković, D.,& Janaćković, Đ.. (2007). Synthesis and characterization of bioglass thin films. in Digest Journal of Nanomaterials and Biostructures
Inst Materials Physics, Bucharest., 2(3), 285-291.
https://hdl.handle.net/21.15107/rcub_technorep_1177

Floroian L, Savu B, Sima F, Mihailescu IN, Tanasković D, Janaćković Đ. Synthesis and characterization of bioglass thin films. in Digest Journal of Nanomaterials and Biostructures. 2007;2(3):285-291.
https://hdl.handle.net/21.15107/rcub_technorep_1177 .

Floroian, L., Savu, B., Sima, F., Mihailescu, Ion N., Tanasković, Dušanka, Janaćković, Đorđe, "Synthesis and characterization of bioglass thin films" in Digest Journal of Nanomaterials and Biostructures, 2, no. 3 (2007):285-291,
https://hdl.handle.net/21.15107/rcub_technorep_1177 .