TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Stojkovska, Jasmina
AU  - Nikolić, Branislav Ž.
AU  - Obradović, Bojana
AU  - Kačarević-Popović, Zorica M.
AU  - Mišković-Stanković, Vesna
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2783
AB  - Silver nanoparticles were produced inside a poly(N-vinyl-2-pyrrolidone) hydrogel (PVP) by an innovative method based on the electrochemical reduction of Ag+ ions within the swollen PVP hydrogel. UV-visible spectroscopy showed the highest value of the absorbance intensity and the lowest values of the wavelength of the absorbance maximum and the full width at the half-maximum absorbance for the Ag/PVP nanocomposite obtained at 200 V during 4 min. Cyclic voltammetry results suggested an adequate entrapment of the silver nanoparticles. The mechanical properties under bioreactor conditions of the Ag/PVP nanocomposite suggested the possibility of wound dressing application. Silver release from Ag/PVP nanocomposites was confirmed under static conditions as well as by their antimicrobial activity against Staphylococcus aureus. POLYM. COMPOS., 35:217-226, 2014.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications
EP  - 226
IS  - 2
SP  - 217
VL  - 35
DO  - 10.1002/pc.22653
ER  - 

@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Stojkovska, Jasmina and Nikolić, Branislav Ž. and Obradović, Bojana and Kačarević-Popović, Zorica M. and Mišković-Stanković, Vesna",
year = "2014",
abstract = "Silver nanoparticles were produced inside a poly(N-vinyl-2-pyrrolidone) hydrogel (PVP) by an innovative method based on the electrochemical reduction of Ag+ ions within the swollen PVP hydrogel. UV-visible spectroscopy showed the highest value of the absorbance intensity and the lowest values of the wavelength of the absorbance maximum and the full width at the half-maximum absorbance for the Ag/PVP nanocomposite obtained at 200 V during 4 min. Cyclic voltammetry results suggested an adequate entrapment of the silver nanoparticles. The mechanical properties under bioreactor conditions of the Ag/PVP nanocomposite suggested the possibility of wound dressing application. Silver release from Ag/PVP nanocomposites was confirmed under static conditions as well as by their antimicrobial activity against Staphylococcus aureus. POLYM. COMPOS., 35:217-226, 2014.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications",
pages = "226-217",
number = "2",
volume = "35",
doi = "10.1002/pc.22653"
}

Jovanović, Ž., Radosavljević, A., Stojkovska, J., Nikolić, B. Ž., Obradović, B., Kačarević-Popović, Z. M.,& Mišković-Stanković, V.. (2014). Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications. in Polymer Composites
Wiley, Hoboken., 35(2), 217-226.
https://doi.org/10.1002/pc.22653

Jovanović Ž, Radosavljević A, Stojkovska J, Nikolić BŽ, Obradović B, Kačarević-Popović ZM, Mišković-Stanković V. Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications. in Polymer Composites. 2014;35(2):217-226.
doi:10.1002/pc.22653 .

Jovanović, Željka, Radosavljević, Aleksandra, Stojkovska, Jasmina, Nikolić, Branislav Ž., Obradović, Bojana, Kačarević-Popović, Zorica M., Mišković-Stanković, Vesna, "Silver/Poly(N-vinyl-2-pyrrolidone) Hydrogel Nanocomposites Obtained by Electrochemical Synthesis of Silver Nanoparticles Inside the Polymer Hydrogel Aimed for Biomedical Applications" in Polymer Composites, 35, no. 2 (2014):217-226,
https://doi.org/10.1002/pc.22653 . .

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Kačarević-Popović, Zorica M.
AU  - Stojkovska, Jasmina
AU  - Perić-Grujić, Aleksandra
AU  - Ristić, Mirjana
AU  - Matić, Ivana Z.
AU  - Juranić, Zorica D.
AU  - Obradović, Bojana
AU  - Mišković-Stanković, Vesna
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2538
AB  - Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites containing Ag nanoparticles at different concentrations were synthesized using gamma-irradiation. Cytotoxicity of the obtained nanocomposites was determined by MU assay in monolayer cultures of normal human immunocompetent peripheral blood mononuclear cells (PBMC) that were either non-stimulated or stimulated to proliferate by mitogen phytohemagglutinin (PHA), as well as in human cervix adenocarcinoma cell (HeLa) cultures. Silver release kinetics and mechanical properties of nanocomposites were investigated under bioreactor conditions in the simulated body fluid (SBF) at 37 degrees C. The release of silver was monitored under static conditions, and in two types of bioreactors: perfusion bioreactors and a bioreactor with dynamic compression coupled with SBF perfusion simulating in vivo conditions in articular cartilage. Ag/PVP nanocomposites exhibited slight cytotoxic effects against PBMC at the estimated concentration of 0.4 mu mol dm(-3), with negligible variations observed amongst different cell cultures investigated. Studies of the silver release kinetics indicated internal diffusion as the rate limiting step, determined by statistically comparable results obtained at all investigated conditions. However, silver release rate was slightly higher in the bioreactor with dynamic compression coupled with SBF perfusion as compared to the other two systems indicating the influence of dynamic compression. Modelling of silver release kinetics revealed potentials for optimization of Ag/PVP nanocomposites for particular applications as wound dressings or soft tissue implants.
PB  - Elsevier Science Bv, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites
EP  - 235
SP  - 230
VL  - 105
DO  - 10.1016/j.colsurfb.2012.12.055
ER  - 

@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Kačarević-Popović, Zorica M. and Stojkovska, Jasmina and Perić-Grujić, Aleksandra and Ristić, Mirjana and Matić, Ivana Z. and Juranić, Zorica D. and Obradović, Bojana and Mišković-Stanković, Vesna",
year = "2013",
abstract = "Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites containing Ag nanoparticles at different concentrations were synthesized using gamma-irradiation. Cytotoxicity of the obtained nanocomposites was determined by MU assay in monolayer cultures of normal human immunocompetent peripheral blood mononuclear cells (PBMC) that were either non-stimulated or stimulated to proliferate by mitogen phytohemagglutinin (PHA), as well as in human cervix adenocarcinoma cell (HeLa) cultures. Silver release kinetics and mechanical properties of nanocomposites were investigated under bioreactor conditions in the simulated body fluid (SBF) at 37 degrees C. The release of silver was monitored under static conditions, and in two types of bioreactors: perfusion bioreactors and a bioreactor with dynamic compression coupled with SBF perfusion simulating in vivo conditions in articular cartilage. Ag/PVP nanocomposites exhibited slight cytotoxic effects against PBMC at the estimated concentration of 0.4 mu mol dm(-3), with negligible variations observed amongst different cell cultures investigated. Studies of the silver release kinetics indicated internal diffusion as the rate limiting step, determined by statistically comparable results obtained at all investigated conditions. However, silver release rate was slightly higher in the bioreactor with dynamic compression coupled with SBF perfusion as compared to the other two systems indicating the influence of dynamic compression. Modelling of silver release kinetics revealed potentials for optimization of Ag/PVP nanocomposites for particular applications as wound dressings or soft tissue implants.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites",
pages = "235-230",
volume = "105",
doi = "10.1016/j.colsurfb.2012.12.055"
}

Jovanović, Ž., Radosavljević, A., Kačarević-Popović, Z. M., Stojkovska, J., Perić-Grujić, A., Ristić, M., Matić, I. Z., Juranić, Z. D., Obradović, B.,& Mišković-Stanković, V.. (2013). Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites. in Colloids and Surfaces B-Biointerfaces
Elsevier Science Bv, Amsterdam., 105, 230-235.
https://doi.org/10.1016/j.colsurfb.2012.12.055

Jovanović Ž, Radosavljević A, Kačarević-Popović ZM, Stojkovska J, Perić-Grujić A, Ristić M, Matić IZ, Juranić ZD, Obradović B, Mišković-Stanković V. Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites. in Colloids and Surfaces B-Biointerfaces. 2013;105:230-235.
doi:10.1016/j.colsurfb.2012.12.055 .

Jovanović, Željka, Radosavljević, Aleksandra, Kačarević-Popović, Zorica M., Stojkovska, Jasmina, Perić-Grujić, Aleksandra, Ristić, Mirjana, Matić, Ivana Z., Juranić, Zorica D., Obradović, Bojana, Mišković-Stanković, Vesna, "Bioreactor validation and biocompatibility of Ag/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposites" in Colloids and Surfaces B-Biointerfaces, 105 (2013):230-235,
https://doi.org/10.1016/j.colsurfb.2012.12.055 . .

TY  - JOUR
AU  - Surudžić, Rade
AU  - Jovanović, Željka
AU  - Bibić, Nataša M.
AU  - Nikolić, Branislav Ž.
AU  - Mišković-Stanković, Vesna
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2365
AB  - In this work, silver/poly(vinyl alcohol), Ag/PVA, colloidal dispersions were obtained by electrochemical reduction of Ag+. The electrochemical synthesis of silver nanoparticles in aqueous solutions of 5 and 10 wt. % PVA, containing 0.1 M KNO3 and 3.9 mM AgNO3, was performed at a constant current density of 25 mA cm-2 for a synthesis time of 10 min. The presence of silver nanoparticles was confirmed by UV-Vis spectroscopy. Cyclic voltammetry analysis and FT-IR spectroscopy indicated interactions between the silver nanoparticles and the PVA molecules. TEM analysis confirmed the spherical shape of the obtained silver nanoparticles, with a mean diameter of 15±9 nm. .
AB  - U ovom radu pokazano je dobijanje koloidnih disperzija srebro/poli(vinil alkohol), Ag/PVA, elektrohemijskom redukcijom Ag+. Elektrohemijska sinteza nanočestica srebra u vodenim rastvorima poli(vinil alkohola) sa 5 i 10 mas. % PVA, koji su sadržali 0,1 M KNO3 i 3,9 mM AgNO3, vršena je pri konstantnoj gustini struje od 25 mA×cm-2 u trajanju od 10 min. Prisustvo nanočestica srebra potvrđeno je ultraljubičastom i vidljivom spektroskopijom. Cikličnom voltametrijom i infracrvenom spektroskopijom pokazana je interakcija između nanočestica srebra i molekula poli(vinil alkohola). Analizom transmisione elektronske mikroskopije je potvrđeno da su dobijene nanočestice srebra sfernog oblika, prečnika 15±9 nm. .
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical synthesis of silver nanoparticles in poly(vinyl alcohol) solution
T1  - Elektrohemijska sinteza nanočestica srebra u rastvoru poli(vinil alkohola)
EP  - 2098
IS  - 12
SP  - 2087
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2365
ER  - 

@article{
author = "Surudžić, Rade and Jovanović, Željka and Bibić, Nataša M. and Nikolić, Branislav Ž. and Mišković-Stanković, Vesna",
year = "2013",
abstract = "In this work, silver/poly(vinyl alcohol), Ag/PVA, colloidal dispersions were obtained by electrochemical reduction of Ag+. The electrochemical synthesis of silver nanoparticles in aqueous solutions of 5 and 10 wt. % PVA, containing 0.1 M KNO3 and 3.9 mM AgNO3, was performed at a constant current density of 25 mA cm-2 for a synthesis time of 10 min. The presence of silver nanoparticles was confirmed by UV-Vis spectroscopy. Cyclic voltammetry analysis and FT-IR spectroscopy indicated interactions between the silver nanoparticles and the PVA molecules. TEM analysis confirmed the spherical shape of the obtained silver nanoparticles, with a mean diameter of 15±9 nm. ., U ovom radu pokazano je dobijanje koloidnih disperzija srebro/poli(vinil alkohol), Ag/PVA, elektrohemijskom redukcijom Ag+. Elektrohemijska sinteza nanočestica srebra u vodenim rastvorima poli(vinil alkohola) sa 5 i 10 mas. % PVA, koji su sadržali 0,1 M KNO3 i 3,9 mM AgNO3, vršena je pri konstantnoj gustini struje od 25 mA×cm-2 u trajanju od 10 min. Prisustvo nanočestica srebra potvrđeno je ultraljubičastom i vidljivom spektroskopijom. Cikličnom voltametrijom i infracrvenom spektroskopijom pokazana je interakcija između nanočestica srebra i molekula poli(vinil alkohola). Analizom transmisione elektronske mikroskopije je potvrđeno da su dobijene nanočestice srebra sfernog oblika, prečnika 15±9 nm. .",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical synthesis of silver nanoparticles in poly(vinyl alcohol) solution, Elektrohemijska sinteza nanočestica srebra u rastvoru poli(vinil alkohola)",
pages = "2098-2087",
number = "12",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2365"
}

Surudžić, R., Jovanović, Ž., Bibić, N. M., Nikolić, B. Ž.,& Mišković-Stanković, V.. (2013). Electrochemical synthesis of silver nanoparticles in poly(vinyl alcohol) solution. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 78(12), 2087-2098.
https://hdl.handle.net/21.15107/rcub_technorep_2365

Surudžić R, Jovanović Ž, Bibić NM, Nikolić BŽ, Mišković-Stanković V. Electrochemical synthesis of silver nanoparticles in poly(vinyl alcohol) solution. in Journal of the Serbian Chemical Society. 2013;78(12):2087-2098.
https://hdl.handle.net/21.15107/rcub_technorep_2365 .

Surudžić, Rade, Jovanović, Željka, Bibić, Nataša M., Nikolić, Branislav Ž., Mišković-Stanković, Vesna, "Electrochemical synthesis of silver nanoparticles in poly(vinyl alcohol) solution" in Journal of the Serbian Chemical Society, 78, no. 12 (2013):2087-2098,
https://hdl.handle.net/21.15107/rcub_technorep_2365 .

TY  - JOUR
AU  - Stojkovska, Jasmina
AU  - Zvicer, Jovana
AU  - Jovanović, Željka
AU  - Mišković-Stanković, Vesna
AU  - Obradović, Bojana
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2078
AB  - The production of nanocomposite alginate microbeads with electrochemically synthesized silver nanoparticles (AgNPs) based on the electrostatic extrusion technique was investigated with respect to their potentials for utilization in pharmaceutical and biomedical applications. It was shown that electrochemical synthesis of AgNPs results in the reduction of practically all the Ag+ present in the initial solution, yielding stable Ag/alginate colloid solutions that were demonstrated to be suitable for sterilization, manipulation, and electrostatic extrusion with retention of the AgNPs. The presence of AgNPs in the alginate colloid solutions had negligible effects on the size of the produced Ag/alginate microbeads, which was mainly determined by the electrostatic potential applied during the extrusion. On the other hand, the incorporation of AgNPs within the alginate hydrogel induced slight changes in biomechanical properties of the microbeads determined in a biomimetic bioreactor. Thus, packed beds of nanocomposite Ag/alginate microbeads exhibited a slightly higher dynamic compression modulus as compared to that of control alginate microbeads (154±4 and 141±2 kPa, respectively). On the other hand, the equilibrium unconfined compression modulus was significantly lower for the nanocomposite microbeads as compared to that of the controls (34±2 and 47±1 kPa, respectively).
AB  - U ovom radu je ispitivan proces dobijanja elektrostatičkom ekstruzijom nanokompozitnih alginatnih mikročestica sa inkorporisanim elektrohemijski sintetisanim nanočesticama srebra u pogledu potencijala za primenu u farmaciji i biomedicini. Pokazalo se da tokom elektrohemijske sinteze nanočestica dolazi do praktično potpune redukcije Ag jona prisutnih u početnom rastvoru, dajući na taj način stabilne Ag/alginatne koloidne rastvore. Pokazano je zatim, da su ovi rastvori pogodni za sterilizaciju, manipulaciju, kao i elektrostatičku ekstruziju uz zadržavanje i očuvanje nanočestica. Prisustvo nanočestica srebra u koloidnim rastvorima nije imalo uticaj na veličinu dobijenih Ag/alginatnih mikročestica koja je pretežno bila određena vrednošću primenjenog elektrostatičkog napona tokom ekstruzije. Sa druge strane, inkorporacija nanočestica srebra unutar alginatnog hidrogela je uzrokovala male promene biomehaničkih karakteristika koje su određene u biomimičnom bioreaktoru. Naime, modul elastičnosti pakovanih slojeva nanokompozitnih Ag/alginatnih mikro-čestica određen pri dinamičkoj kompresiji je bio nešto veći nego kod pakovanog sloja kontrolnih alginatnih mikročestica (154±4 i 141±2 kPa, redom) dok je ravnotežni modul elastičnosti slojeva nanokompozitnih mikročestica bio značajno manji (34±2 i 47±1 kPa, redom).
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Controlled production of alginate nanocomposites with incorporated silver nanoparticles aimed for biomedical applications
T1  - Kontrolisano dobijanje alginatnih nanokompozita sa inkorporisanim nanočesticama srebra u cilju biomedicinske primene
EP  - 1722
IS  - 12
SP  - 1709
VL  - 77
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2078
ER  - 

@article{
author = "Stojkovska, Jasmina and Zvicer, Jovana and Jovanović, Željka and Mišković-Stanković, Vesna and Obradović, Bojana",
year = "2012",
abstract = "The production of nanocomposite alginate microbeads with electrochemically synthesized silver nanoparticles (AgNPs) based on the electrostatic extrusion technique was investigated with respect to their potentials for utilization in pharmaceutical and biomedical applications. It was shown that electrochemical synthesis of AgNPs results in the reduction of practically all the Ag+ present in the initial solution, yielding stable Ag/alginate colloid solutions that were demonstrated to be suitable for sterilization, manipulation, and electrostatic extrusion with retention of the AgNPs. The presence of AgNPs in the alginate colloid solutions had negligible effects on the size of the produced Ag/alginate microbeads, which was mainly determined by the electrostatic potential applied during the extrusion. On the other hand, the incorporation of AgNPs within the alginate hydrogel induced slight changes in biomechanical properties of the microbeads determined in a biomimetic bioreactor. Thus, packed beds of nanocomposite Ag/alginate microbeads exhibited a slightly higher dynamic compression modulus as compared to that of control alginate microbeads (154±4 and 141±2 kPa, respectively). On the other hand, the equilibrium unconfined compression modulus was significantly lower for the nanocomposite microbeads as compared to that of the controls (34±2 and 47±1 kPa, respectively)., U ovom radu je ispitivan proces dobijanja elektrostatičkom ekstruzijom nanokompozitnih alginatnih mikročestica sa inkorporisanim elektrohemijski sintetisanim nanočesticama srebra u pogledu potencijala za primenu u farmaciji i biomedicini. Pokazalo se da tokom elektrohemijske sinteze nanočestica dolazi do praktično potpune redukcije Ag jona prisutnih u početnom rastvoru, dajući na taj način stabilne Ag/alginatne koloidne rastvore. Pokazano je zatim, da su ovi rastvori pogodni za sterilizaciju, manipulaciju, kao i elektrostatičku ekstruziju uz zadržavanje i očuvanje nanočestica. Prisustvo nanočestica srebra u koloidnim rastvorima nije imalo uticaj na veličinu dobijenih Ag/alginatnih mikročestica koja je pretežno bila određena vrednošću primenjenog elektrostatičkog napona tokom ekstruzije. Sa druge strane, inkorporacija nanočestica srebra unutar alginatnog hidrogela je uzrokovala male promene biomehaničkih karakteristika koje su određene u biomimičnom bioreaktoru. Naime, modul elastičnosti pakovanih slojeva nanokompozitnih Ag/alginatnih mikro-čestica određen pri dinamičkoj kompresiji je bio nešto veći nego kod pakovanog sloja kontrolnih alginatnih mikročestica (154±4 i 141±2 kPa, redom) dok je ravnotežni modul elastičnosti slojeva nanokompozitnih mikročestica bio značajno manji (34±2 i 47±1 kPa, redom).",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Controlled production of alginate nanocomposites with incorporated silver nanoparticles aimed for biomedical applications, Kontrolisano dobijanje alginatnih nanokompozita sa inkorporisanim nanočesticama srebra u cilju biomedicinske primene",
pages = "1722-1709",
number = "12",
volume = "77",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2078"
}

Stojkovska, J., Zvicer, J., Jovanović, Ž., Mišković-Stanković, V.,& Obradović, B.. (2012). Controlled production of alginate nanocomposites with incorporated silver nanoparticles aimed for biomedical applications. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 77(12), 1709-1722.
https://hdl.handle.net/21.15107/rcub_technorep_2078

Stojkovska J, Zvicer J, Jovanović Ž, Mišković-Stanković V, Obradović B. Controlled production of alginate nanocomposites with incorporated silver nanoparticles aimed for biomedical applications. in Journal of the Serbian Chemical Society. 2012;77(12):1709-1722.
https://hdl.handle.net/21.15107/rcub_technorep_2078 .

Stojkovska, Jasmina, Zvicer, Jovana, Jovanović, Željka, Mišković-Stanković, Vesna, Obradović, Bojana, "Controlled production of alginate nanocomposites with incorporated silver nanoparticles aimed for biomedical applications" in Journal of the Serbian Chemical Society, 77, no. 12 (2012):1709-1722,
https://hdl.handle.net/21.15107/rcub_technorep_2078 .

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Šiljegović, Milorad
AU  - Bibić, Nataša M.
AU  - Mišković-Stanković, Vesna
AU  - Kačarević-Popović, Zorica M.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2113
AB  - Silver nanoparticles (AgNPs) were synthesized in situ by gamma-irradiation using poly(N-vinyl-2-pyrrolidone) (PVP) as a capping agent. The concentration, molecular weight and the structure (crosslinked and interpenetrated network) of PVP were varied, in order to determine the influence of the capping agent in the radiolytic synthesis of the Ag/PVP nanosystems. Transmission electron microscopy (TEM) showed that AgNPs obtained from the solutions containing higher PVP concentration and higher molecular weight were spherical in shape, with narrow size distribution and a diameter of similar to 6 nm, while slightly larger rod-shaped silver agglomerates, with bimodal nanoparticle size distribution and diameters of similar to 10 nm and similar to 20 nm were obtained from the solutions containing lower PVP concentration and lower molecular weight. Strong plasmon coupling and extending of plasmon resonance was observed by UV-vis spectroscopy, as a result of formation of nanorod-like agglomerates. Crosslinked and interpenetrated network did not affect the structure of synthesized AgNPs. Ag/PVP nanocomposite, in the form of thin film, was obtained by solvent evaporation from Ag/PVP colloid solution with 10 wt% of PVP, and characterized by FTIR spectroscopy. The interactions in Ag/PVP nanocomposite are shown to be the result of the coordination bonding between AgNPs and nitrogen from pyrrolidone ring of PVP. The optical properties of investigated Ag/PVP nanosystems, as measured by the values of optical band gap, E-g, are mainly the consequence of the interparticle distance as a result of the concentration and the structure of surrounding PVP macromolecules.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Radiation Physics and Chemistry
T1  - Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation
EP  - 1728
IS  - 11
SP  - 1720
VL  - 81
DO  - 10.1016/j.radphyschem.2012.05.019
ER  - 

@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Šiljegović, Milorad and Bibić, Nataša M. and Mišković-Stanković, Vesna and Kačarević-Popović, Zorica M.",
year = "2012",
abstract = "Silver nanoparticles (AgNPs) were synthesized in situ by gamma-irradiation using poly(N-vinyl-2-pyrrolidone) (PVP) as a capping agent. The concentration, molecular weight and the structure (crosslinked and interpenetrated network) of PVP were varied, in order to determine the influence of the capping agent in the radiolytic synthesis of the Ag/PVP nanosystems. Transmission electron microscopy (TEM) showed that AgNPs obtained from the solutions containing higher PVP concentration and higher molecular weight were spherical in shape, with narrow size distribution and a diameter of similar to 6 nm, while slightly larger rod-shaped silver agglomerates, with bimodal nanoparticle size distribution and diameters of similar to 10 nm and similar to 20 nm were obtained from the solutions containing lower PVP concentration and lower molecular weight. Strong plasmon coupling and extending of plasmon resonance was observed by UV-vis spectroscopy, as a result of formation of nanorod-like agglomerates. Crosslinked and interpenetrated network did not affect the structure of synthesized AgNPs. Ag/PVP nanocomposite, in the form of thin film, was obtained by solvent evaporation from Ag/PVP colloid solution with 10 wt% of PVP, and characterized by FTIR spectroscopy. The interactions in Ag/PVP nanocomposite are shown to be the result of the coordination bonding between AgNPs and nitrogen from pyrrolidone ring of PVP. The optical properties of investigated Ag/PVP nanosystems, as measured by the values of optical band gap, E-g, are mainly the consequence of the interparticle distance as a result of the concentration and the structure of surrounding PVP macromolecules.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Radiation Physics and Chemistry",
title = "Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation",
pages = "1728-1720",
number = "11",
volume = "81",
doi = "10.1016/j.radphyschem.2012.05.019"
}

Jovanović, Ž., Radosavljević, A., Šiljegović, M., Bibić, N. M., Mišković-Stanković, V.,& Kačarević-Popović, Z. M.. (2012). Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation. in Radiation Physics and Chemistry
Pergamon-Elsevier Science Ltd, Oxford., 81(11), 1720-1728.
https://doi.org/10.1016/j.radphyschem.2012.05.019

Jovanović Ž, Radosavljević A, Šiljegović M, Bibić NM, Mišković-Stanković V, Kačarević-Popović ZM. Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation. in Radiation Physics and Chemistry. 2012;81(11):1720-1728.
doi:10.1016/j.radphyschem.2012.05.019 .

Jovanović, Željka, Radosavljević, Aleksandra, Šiljegović, Milorad, Bibić, Nataša M., Mišković-Stanković, Vesna, Kačarević-Popović, Zorica M., "Structural and optical characteristics of silver/poly(N-vinyl-2-pyrrolidone) nanosystems synthesized by gamma-irradiation" in Radiation Physics and Chemistry, 81, no. 11 (2012):1720-1728,
https://doi.org/10.1016/j.radphyschem.2012.05.019 . .

TY  - JOUR
AU  - Jovanović, Željka
AU  - Krklješ, Aleksandra
AU  - Stojkovska, Jasmina
AU  - Tomić, Simonida
AU  - Obradović, Bojana
AU  - Mišković-Stanković, Vesna
AU  - Kačarević-Popović, Zorica M.
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1864
AB  - This work describes radiolytic synthesis of silver nanoparticles (Ag NPs) within the poly(N-vinyl-2-pyrrolidone) (PVP) hydrogel. The hydrogel matrix was obtained by gamma irradiation-induced cross-linking, while the in situ reduction of Ag+ ions was performed using strong reducing species formed under water radiolysis. Absorption spectrum of the Ag/PVP nanocomposite confirmed the formation of Ag NPs, showing the surface plasmon band maxima at 405 nm. Ag/PVP nanocomposites were characterized by XRD and TEM analysis, accompanied with investigations of swelling and diffusion properties in the simulated body fluid at 37 degrees C, and mechanical properties in bioreactor conditions. It was shown that Ag/PVP nanocomposite exhibited higher values of equilibrium swelling degree, Young's modulus, and molar mass between crosslinks, while lower values of the diffusion coefficient and effective crosslink density were obtained, as compared to the pure PVP.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Radiation Physics and Chemistry
T1  - Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method
EP  - 1215
IS  - 11
SP  - 1208
VL  - 80
DO  - 10.1016/j.radphyschem.2011.06.005
ER  - 

@article{
author = "Jovanović, Željka and Krklješ, Aleksandra and Stojkovska, Jasmina and Tomić, Simonida and Obradović, Bojana and Mišković-Stanković, Vesna and Kačarević-Popović, Zorica M.",
year = "2011",
abstract = "This work describes radiolytic synthesis of silver nanoparticles (Ag NPs) within the poly(N-vinyl-2-pyrrolidone) (PVP) hydrogel. The hydrogel matrix was obtained by gamma irradiation-induced cross-linking, while the in situ reduction of Ag+ ions was performed using strong reducing species formed under water radiolysis. Absorption spectrum of the Ag/PVP nanocomposite confirmed the formation of Ag NPs, showing the surface plasmon band maxima at 405 nm. Ag/PVP nanocomposites were characterized by XRD and TEM analysis, accompanied with investigations of swelling and diffusion properties in the simulated body fluid at 37 degrees C, and mechanical properties in bioreactor conditions. It was shown that Ag/PVP nanocomposite exhibited higher values of equilibrium swelling degree, Young's modulus, and molar mass between crosslinks, while lower values of the diffusion coefficient and effective crosslink density were obtained, as compared to the pure PVP.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Radiation Physics and Chemistry",
title = "Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method",
pages = "1215-1208",
number = "11",
volume = "80",
doi = "10.1016/j.radphyschem.2011.06.005"
}

Jovanović, Ž., Krklješ, A., Stojkovska, J., Tomić, S., Obradović, B., Mišković-Stanković, V.,& Kačarević-Popović, Z. M.. (2011). Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method. in Radiation Physics and Chemistry
Pergamon-Elsevier Science Ltd, Oxford., 80(11), 1208-1215.
https://doi.org/10.1016/j.radphyschem.2011.06.005

Jovanović Ž, Krklješ A, Stojkovska J, Tomić S, Obradović B, Mišković-Stanković V, Kačarević-Popović ZM. Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method. in Radiation Physics and Chemistry. 2011;80(11):1208-1215.
doi:10.1016/j.radphyschem.2011.06.005 .

Jovanović, Željka, Krklješ, Aleksandra, Stojkovska, Jasmina, Tomić, Simonida, Obradović, Bojana, Mišković-Stanković, Vesna, Kačarević-Popović, Zorica M., "Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method" in Radiation Physics and Chemistry, 80, no. 11 (2011):1208-1215,
https://doi.org/10.1016/j.radphyschem.2011.06.005 . .

TY  - JOUR
AU  - Jovanović, Željka
AU  - Radosavljević, Aleksandra
AU  - Kačarević-Popović, Zorica M.
AU  - Mišković-Stanković, Vesna
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1778
AB  - Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ at a constant voltage, by in situ synthesis of silver nanoparticles inside a poly(N-vinyl-2-pyrrolidone) matrix, previously cross-linked by g-irradiation. Optimal values of synthesis parameters were investigated: the composition of the solution for swelling of PVP hydrogel, implementation time and applied voltage. Ag/PVP nanocomposites were characterized by UV-Visible spectroscopy, and IR spectroscopy. UV-Visible spectroscopy results showed that the reduction of silver ions was more efficient when the more conductive solution for swelling of PVP hydrogel was used, i.e., the solution containing 3.9 mM AgNO3 with 0.1 M KNO3. It was also shown that the concentration of the reduced silver increases with the increase in implementation time and applied voltage, up to values of 4 min and 200 V, respectively. The Ag nanoparticle size was estimated to be 25 nm, by comparison of the experimental results of UV-Vis spectroscopy with the theoretical predictions obtained by the calculations in 'MiePlot v.3.4' software, having the algorithm based on Mie scattering from a sphere. The results of FTIR spectroscopy have shown that Ag nanoparticles were mainly bonded to PVP by coordination bondages between Ag nanoparticles and N from the pyrrolidone ring of PVP.
AB  - Nanokompoziti srebra i poli(N-vinil-2-pirolidona), PVP, dobijeni su elektrohemijskom redukcijom Ag+ pri konstantnom naponu, in situ sintezom nanočestica srebra u umreženoj matrici PVP, prethodno dobijenoj radijaciono-hemijskim putem. Optimizacija elektrohemijske sinteze nanočestica srebra je vršena variranjem sledećih parametara: sastava rastvora za bubrenje PVP hidrogela, vremena implementacije i primenjenog napona. Prisustvo nanočestica srebra u Ag/PVP nanokompozitima potvrđeno je UV-vidljivom spektroskopijom, dok je postojanje interakcija između nanočestica srebra i molekula PVP potvrđeno FTIR spektroskopijom. Rezultati rada ukazuju na to da je redukcija srebra efikasnija kada se koristi rastvor za bubrenje veće provodljivosti, kao i da koncentracija dobijenih nanočestica srebra raste sa produžetkom vremena implementacije i povećanjem primenjenog napona.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by electrochemical synthesis
T1  - Srebro/poli(N-vinil-2-pirolidon) nanokompoziti dobijeni elektrohemijskom sintezom
EP  - 696
IS  - 6
SP  - 687
VL  - 65
DO  - 10.2298/HEMIND110915064J
ER  - 

@article{
author = "Jovanović, Željka and Radosavljević, Aleksandra and Kačarević-Popović, Zorica M. and Mišković-Stanković, Vesna",
year = "2011",
abstract = "Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ at a constant voltage, by in situ synthesis of silver nanoparticles inside a poly(N-vinyl-2-pyrrolidone) matrix, previously cross-linked by g-irradiation. Optimal values of synthesis parameters were investigated: the composition of the solution for swelling of PVP hydrogel, implementation time and applied voltage. Ag/PVP nanocomposites were characterized by UV-Visible spectroscopy, and IR spectroscopy. UV-Visible spectroscopy results showed that the reduction of silver ions was more efficient when the more conductive solution for swelling of PVP hydrogel was used, i.e., the solution containing 3.9 mM AgNO3 with 0.1 M KNO3. It was also shown that the concentration of the reduced silver increases with the increase in implementation time and applied voltage, up to values of 4 min and 200 V, respectively. The Ag nanoparticle size was estimated to be 25 nm, by comparison of the experimental results of UV-Vis spectroscopy with the theoretical predictions obtained by the calculations in 'MiePlot v.3.4' software, having the algorithm based on Mie scattering from a sphere. The results of FTIR spectroscopy have shown that Ag nanoparticles were mainly bonded to PVP by coordination bondages between Ag nanoparticles and N from the pyrrolidone ring of PVP., Nanokompoziti srebra i poli(N-vinil-2-pirolidona), PVP, dobijeni su elektrohemijskom redukcijom Ag+ pri konstantnom naponu, in situ sintezom nanočestica srebra u umreženoj matrici PVP, prethodno dobijenoj radijaciono-hemijskim putem. Optimizacija elektrohemijske sinteze nanočestica srebra je vršena variranjem sledećih parametara: sastava rastvora za bubrenje PVP hidrogela, vremena implementacije i primenjenog napona. Prisustvo nanočestica srebra u Ag/PVP nanokompozitima potvrđeno je UV-vidljivom spektroskopijom, dok je postojanje interakcija između nanočestica srebra i molekula PVP potvrđeno FTIR spektroskopijom. Rezultati rada ukazuju na to da je redukcija srebra efikasnija kada se koristi rastvor za bubrenje veće provodljivosti, kao i da koncentracija dobijenih nanočestica srebra raste sa produžetkom vremena implementacije i povećanjem primenjenog napona.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by electrochemical synthesis, Srebro/poli(N-vinil-2-pirolidon) nanokompoziti dobijeni elektrohemijskom sintezom",
pages = "696-687",
number = "6",
volume = "65",
doi = "10.2298/HEMIND110915064J"
}

Jovanović, Ž., Radosavljević, A., Kačarević-Popović, Z. M.,& Mišković-Stanković, V.. (2011). Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by electrochemical synthesis. in Hemijska industrija
Association of Chemical Engineers of Serbia., 65(6), 687-696.
https://doi.org/10.2298/HEMIND110915064J

Jovanović Ž, Radosavljević A, Kačarević-Popović ZM, Mišković-Stanković V. Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by electrochemical synthesis. in Hemijska industrija. 2011;65(6):687-696.
doi:10.2298/HEMIND110915064J .

Jovanović, Željka, Radosavljević, Aleksandra, Kačarević-Popović, Zorica M., Mišković-Stanković, Vesna, "Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by electrochemical synthesis" in Hemijska industrija, 65, no. 6 (2011):687-696,
https://doi.org/10.2298/HEMIND110915064J . .

TY  - CONF
AU  - Jovanović, Željka
AU  - Panić, Vladimir
AU  - Nikolić, Branislav
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1557
AB  - The potential use of Ag/poly(N-vinyl-2-pyrrolidone) (PVP) nanocomposites is in wound dressings or soft tissue implants, where Ag nanoparticles (AgNPs) serve as the antimicrobial agent. Ag/PVP nanocomposites were electrochemically synthesized, by the electrochemical reduction of Ag+ ions into the AgNPs in the PVP aqueous solution and within the crosslinked PVP matrix, forming the non-crosslinked and crosslinked Ag/PVP nanocomposite, respectively. The synthesis of AgNPs was performed in an electrochemical cell with Pt working and counter electrodes and the saturated calomel electrode (SCE) as the reference. The non-crosslinked Ag/PVP nanocomposite was obtained by galvanostatic reduction of Ag+ ions from the aqueous solution consisted of 0.10 M KNO3, 3.9 mM AgNO3 and 10 wt. % PVP. The crosslinked Ag/PVP nanocomposite was obtained by in situ potentiostatic reduction of Ag+ ions within PVP hydrogel, previously prepared by -irradiation of the 10 wt. % PVP aqueous solution. Hydrogels were swollen in two different aqueous solutions ((a) 3.9 mM AgNO3, (b) 3.9 mM AgNO3 + 0.10 M KNO3) for 24 h. Ag/PVP nanocomposite systems were characterized by UV-Vis spectroscopy, FTIR, TEM, XRD, Z-sizer analysis and cyclic voltammetry.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstra
T1  - The electrochemical synthesis of different Ag/PVP nanocomposites
EP  - 155
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1557
ER  - 

@conference{
author = "Jovanović, Željka and Panić, Vladimir and Nikolić, Branislav and Mišković-Stanković, Vesna",
year = "2010",
abstract = "The potential use of Ag/poly(N-vinyl-2-pyrrolidone) (PVP) nanocomposites is in wound dressings or soft tissue implants, where Ag nanoparticles (AgNPs) serve as the antimicrobial agent. Ag/PVP nanocomposites were electrochemically synthesized, by the electrochemical reduction of Ag+ ions into the AgNPs in the PVP aqueous solution and within the crosslinked PVP matrix, forming the non-crosslinked and crosslinked Ag/PVP nanocomposite, respectively. The synthesis of AgNPs was performed in an electrochemical cell with Pt working and counter electrodes and the saturated calomel electrode (SCE) as the reference. The non-crosslinked Ag/PVP nanocomposite was obtained by galvanostatic reduction of Ag+ ions from the aqueous solution consisted of 0.10 M KNO3, 3.9 mM AgNO3 and 10 wt. % PVP. The crosslinked Ag/PVP nanocomposite was obtained by in situ potentiostatic reduction of Ag+ ions within PVP hydrogel, previously prepared by -irradiation of the 10 wt. % PVP aqueous solution. Hydrogels were swollen in two different aqueous solutions ((a) 3.9 mM AgNO3, (b) 3.9 mM AgNO3 + 0.10 M KNO3) for 24 h. Ag/PVP nanocomposite systems were characterized by UV-Vis spectroscopy, FTIR, TEM, XRD, Z-sizer analysis and cyclic voltammetry.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstra",
title = "The electrochemical synthesis of different Ag/PVP nanocomposites",
pages = "155-155",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1557"
}

Jovanović, Ž., Panić, V., Nikolić, B.,& Mišković-Stanković, V.. (2010). The electrochemical synthesis of different Ag/PVP nanocomposites. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstra
Serbian Chemical Society, Belgrade., 155-155.
https://hdl.handle.net/21.15107/rcub_technorep_1557

Jovanović Ž, Panić V, Nikolić B, Mišković-Stanković V. The electrochemical synthesis of different Ag/PVP nanocomposites. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstra. 2010;:155-155.
https://hdl.handle.net/21.15107/rcub_technorep_1557 .

Jovanović, Željka, Panić, Vladimir, Nikolić, Branislav, Mišković-Stanković, Vesna, "The electrochemical synthesis of different Ag/PVP nanocomposites" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstra (2010):155-155,
https://hdl.handle.net/21.15107/rcub_technorep_1557 .

TY  - CONF
AU  - Jovanović, Željka
AU  - Panić, Vladimir
AU  - Krklješ, Aleksandra
AU  - Kačarević-Popović, Zorica M.
AU  - Nikolić, Branislav
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1554
AB  - Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVPhydrogels, crosslinked by gamma-irradiation, were swollen in the solution containing0.1 M KNO3 and 3.9 mM AgNO3. PVP polymer matrix nanocavities were used asnanoreactors for AgNPs synthesis. The reduction of silver cations was performed usingtwo-Pt-electrode electrochemical cell. The polarity of the electrodes was changed on thehalf of the implementation time, enabling the Ag+ ions reduction in the bulk. Cyclicvoltammetry (CV) was performed in a three-electrode electrochemical cell, using thesaturated calomel electrode (SCE) as a reference. Ag/PVP nanocomposites werescanned by CV immediately after the synthesis and after drying followed by reswelling in0.1 M KNO3. Ag/PVP was compared with CVs of the following systems: Pt electrode in0.1 M KNO3; Pt/PVP system in 0.1 M KNO3; Ag/Pt system in 0.1 M KNO3 + 3.9 mMAgNO3 solution.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
T1  - Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite
EP  - 32
SP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1554
ER  - 

@conference{
author = "Jovanović, Željka and Panić, Vladimir and Krklješ, Aleksandra and Kačarević-Popović, Zorica M. and Nikolić, Branislav and Mišković-Stanković, Vesna",
year = "2010",
abstract = "Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVPhydrogels, crosslinked by gamma-irradiation, were swollen in the solution containing0.1 M KNO3 and 3.9 mM AgNO3. PVP polymer matrix nanocavities were used asnanoreactors for AgNPs synthesis. The reduction of silver cations was performed usingtwo-Pt-electrode electrochemical cell. The polarity of the electrodes was changed on thehalf of the implementation time, enabling the Ag+ ions reduction in the bulk. Cyclicvoltammetry (CV) was performed in a three-electrode electrochemical cell, using thesaturated calomel electrode (SCE) as a reference. Ag/PVP nanocomposites werescanned by CV immediately after the synthesis and after drying followed by reswelling in0.1 M KNO3. Ag/PVP was compared with CVs of the following systems: Pt electrode in0.1 M KNO3; Pt/PVP system in 0.1 M KNO3; Ag/Pt system in 0.1 M KNO3 + 3.9 mMAgNO3 solution.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings",
title = "Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite",
pages = "32-29",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1554"
}

Jovanović, Ž., Panić, V., Krklješ, A., Kačarević-Popović, Z. M., Nikolić, B.,& Mišković-Stanković, V.. (2010). Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
Serbian Chemical Society, Belgrade., 29-32.
https://hdl.handle.net/21.15107/rcub_technorep_1554

Jovanović Ž, Panić V, Krklješ A, Kačarević-Popović ZM, Nikolić B, Mišković-Stanković V. Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings. 2010;:29-32.
https://hdl.handle.net/21.15107/rcub_technorep_1554 .

Jovanović, Željka, Panić, Vladimir, Krklješ, Aleksandra, Kačarević-Popović, Zorica M., Nikolić, Branislav, Mišković-Stanković, Vesna, "Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings (2010):29-32,
https://hdl.handle.net/21.15107/rcub_technorep_1554 .

TY  - JOUR
AU  - Jovanović, Željka
AU  - Mišković-Stanković, Vesna
AU  - Bajat, Jelena
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1315
AB  - The aim of this work was to investigate the influence of deposition parameters (silane solution concentration, deposition time, curing time) on electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane (MAPT) coatings on aluminum. The electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings on aluminum were investigated during exposure to 3 wt. % NaCl solution using electrochemical impedance spectroscopy (EIS), potential-time measurements, gravimetric liquid sorption measurements and adhesion measurements. The coatings deposited from 5 vol. % solution exhibited better corrosion stability, while the deposition time and curing time have no influence on protective properties of MAPT coatings.
AB  - Cilj ovog rada je ispitivanje uticaja parametara taloženja prevlake (koncentracija rastvora silana, vreme taloženja i vreme pečenja) na elektrohemijske i sorpcione karakteristike prevlaka metakriloksipropiltrimetoksisilana (MAPT) na aluminijumu. Elektrohemijske i sorpcione karakteristike prevlaka metakriloksipropiltrimetoksisilana na aluminijumu su ispitivane u 3 mas. % rastvoru NaCl primenom spektroskopije elektrohemijske impedancije (SEI), metode potencijal-vreme, gravimetrijske metode određivanja sorpcionih karakteristika i određivanjem adhezije. Pokazano je da veću korozionu stabilnost imaju prevlake metakriloksipropiltrimetoksisilana taložene iz rastvora koncentracije 5 vol. %, a da vreme taloženja i vreme pečenja prevlaka nemaju uticaja na njihova zaštitna svojstva.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings
T1  - Elektrohemijske i sorpcione karakteristike prevlaka metakriloksipropiltrimetoksisilana
EP  - 22
IS  - 1
SP  - 15
VL  - 49
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1315
ER  - 

@article{
author = "Jovanović, Željka and Mišković-Stanković, Vesna and Bajat, Jelena",
year = "2008",
abstract = "The aim of this work was to investigate the influence of deposition parameters (silane solution concentration, deposition time, curing time) on electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane (MAPT) coatings on aluminum. The electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings on aluminum were investigated during exposure to 3 wt. % NaCl solution using electrochemical impedance spectroscopy (EIS), potential-time measurements, gravimetric liquid sorption measurements and adhesion measurements. The coatings deposited from 5 vol. % solution exhibited better corrosion stability, while the deposition time and curing time have no influence on protective properties of MAPT coatings., Cilj ovog rada je ispitivanje uticaja parametara taloženja prevlake (koncentracija rastvora silana, vreme taloženja i vreme pečenja) na elektrohemijske i sorpcione karakteristike prevlaka metakriloksipropiltrimetoksisilana (MAPT) na aluminijumu. Elektrohemijske i sorpcione karakteristike prevlaka metakriloksipropiltrimetoksisilana na aluminijumu su ispitivane u 3 mas. % rastvoru NaCl primenom spektroskopije elektrohemijske impedancije (SEI), metode potencijal-vreme, gravimetrijske metode određivanja sorpcionih karakteristika i određivanjem adhezije. Pokazano je da veću korozionu stabilnost imaju prevlake metakriloksipropiltrimetoksisilana taložene iz rastvora koncentracije 5 vol. %, a da vreme taloženja i vreme pečenja prevlaka nemaju uticaja na njihova zaštitna svojstva.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings, Elektrohemijske i sorpcione karakteristike prevlaka metakriloksipropiltrimetoksisilana",
pages = "22-15",
number = "1",
volume = "49",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1315"
}

Jovanović, Ž., Mišković-Stanković, V.,& Bajat, J.. (2008). Electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 49(1), 15-22.
https://hdl.handle.net/21.15107/rcub_technorep_1315

Jovanović Ž, Mišković-Stanković V, Bajat J. Electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings. in Zaštita materijala. 2008;49(1):15-22.
https://hdl.handle.net/21.15107/rcub_technorep_1315 .

Jovanović, Željka, Mišković-Stanković, Vesna, Bajat, Jelena, "Electrochemical and sorption characteristics of metacryloxypropyltrimethoxysilane coatings" in Zaštita materijala, 49, no. 1 (2008):15-22,
https://hdl.handle.net/21.15107/rcub_technorep_1315 .

TY  - JOUR
AU  - Jovanović, Željka
AU  - Mišković-Stanković, Vesna
AU  - Bajat, Jelena
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1314
AB  - In this work the influence of the deposition parameters, i.e. silane solution concentration, deposition time and curing time on the corrosion stability of vinyltriethoxysilane (VTES) coatings on aluminum was investigated. The protective properties of vinyltriethoxysilane coatings on aluminum were investigated during exposure to 3 wt. % NaCl solution using electrochemical impedance spectroscopy (EIS), potential-time measurements, gravimetric liquid sorption measurements and adhesion measurements. It was shown that films deposited from 5 vol. % solution exhibited better corrosion stability, while the deposition time and curing time have no influence on corrosion resistance of VTES coatings.
AB  - U radu je ispitivan uticaj uslova taloženja prevlake,tj. koncentracije rastvora silana, vremena taloženja i vremena pečenja na korozionu stabilnost prevlaka viniltrietoksisilana (VTES) na aluminijumu. Zaštitna svojstva prevlaka viniltrietoksisilana na aluminijumu su ispitivana u 3 mas. % rastvoru NaCl primenom spektroskopije elektrohemijske impedancije (SEI) metode potencijal - vreme, gravimetrijske metode određivanja sorpcionih karakteristika i određivanjem adhezije. Pokazano je da veću korozionu stabilnost imaju prevlake viniltrietoksisilana taložene iz rastvora koncentracije 5 vol. %, a da vreme taloženja i vreme pečenja prevlaka nemaju uticaja na njihova zaštitna svojstva.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Corrosion protection of aluminum by vinyltriethoxysilane coatings
T1  - Koroziona stabilnost prevlaka viniltrietoksisilana
EP  - 30
IS  - 1
SP  - 23
VL  - 49
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1314
ER  - 

@article{
author = "Jovanović, Željka and Mišković-Stanković, Vesna and Bajat, Jelena",
year = "2008",
abstract = "In this work the influence of the deposition parameters, i.e. silane solution concentration, deposition time and curing time on the corrosion stability of vinyltriethoxysilane (VTES) coatings on aluminum was investigated. The protective properties of vinyltriethoxysilane coatings on aluminum were investigated during exposure to 3 wt. % NaCl solution using electrochemical impedance spectroscopy (EIS), potential-time measurements, gravimetric liquid sorption measurements and adhesion measurements. It was shown that films deposited from 5 vol. % solution exhibited better corrosion stability, while the deposition time and curing time have no influence on corrosion resistance of VTES coatings., U radu je ispitivan uticaj uslova taloženja prevlake,tj. koncentracije rastvora silana, vremena taloženja i vremena pečenja na korozionu stabilnost prevlaka viniltrietoksisilana (VTES) na aluminijumu. Zaštitna svojstva prevlaka viniltrietoksisilana na aluminijumu su ispitivana u 3 mas. % rastvoru NaCl primenom spektroskopije elektrohemijske impedancije (SEI) metode potencijal - vreme, gravimetrijske metode određivanja sorpcionih karakteristika i određivanjem adhezije. Pokazano je da veću korozionu stabilnost imaju prevlake viniltrietoksisilana taložene iz rastvora koncentracije 5 vol. %, a da vreme taloženja i vreme pečenja prevlaka nemaju uticaja na njihova zaštitna svojstva.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Corrosion protection of aluminum by vinyltriethoxysilane coatings, Koroziona stabilnost prevlaka viniltrietoksisilana",
pages = "30-23",
number = "1",
volume = "49",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1314"
}

Jovanović, Ž., Mišković-Stanković, V.,& Bajat, J.. (2008). Corrosion protection of aluminum by vinyltriethoxysilane coatings. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 49(1), 23-30.
https://hdl.handle.net/21.15107/rcub_technorep_1314

Jovanović Ž, Mišković-Stanković V, Bajat J. Corrosion protection of aluminum by vinyltriethoxysilane coatings. in Zaštita materijala. 2008;49(1):23-30.
https://hdl.handle.net/21.15107/rcub_technorep_1314 .

Jovanović, Željka, Mišković-Stanković, Vesna, Bajat, Jelena, "Corrosion protection of aluminum by vinyltriethoxysilane coatings" in Zaštita materijala, 49, no. 1 (2008):23-30,
https://hdl.handle.net/21.15107/rcub_technorep_1314 .