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.
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 . .
