TY  - JOUR
AU  - Mićić, Maja M.
AU  - Milić-Vukašinović, Tanja
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan M.
AU  - Suljovrujić, Edin H.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5718
AB  - Silver nanoparticles were fabricated via in situ reduction of silver nitrate embedded in swollen P(HEMA/IA) hydrogel, using gamma radiolysis method. Copolymeric hydrogels based on 2-hydroxyethyl methacrylate (HEMA) and itaconic acid (IA), previously synthesised by gamma radiation for wound dressing application, were used as a carrier and a stabilising agent, while ethyl alcohol was used as a free radical scavenger. The influence of different P(HEMA/IA) hydrogels and silver salt concentrations on the size and distribution of nanoparticles was investigated. The Ag/P(HEMA/IA) nanocomposites were characterised by high resolution scanning electron microscopy, energy dispersive spectroscopy, wide-angle X-ray diffraction, UV-Vis spectroscopy and swelling measurements. Escherichia coli (Gram-negative bacterium), Staphylococcus aureus (Gram-positive bacterium) and Candida albicans (fungus) were used to prove the antimicrobial properties of Ag/P(HEMA/IA) nanocomposites. The inhibition kinetics of bacteria growth was investigated by measuring the colony-forming unit. The antimicrobial effectiveness of the Ag/P(HEMA/IA) hydrogel nanocomposite was demonstrated even at small silver concentrations. P(HEMA/IA) hydrogels containing nanosilver particles was found suitable to be used as wound dressing.
T2  - Polymer Bulletin
T1  - Radiation synthesis, characterisation and antimicrobial application of novel copolymeric silver/poly(2-hydroxyethyl methacrylate/itaconic acid) nanocomposite hydrogels
VL  - 70
IS  - 12
SP  - 3347
EP  - 3357
DO  - 10.1007/s00289-013-1026-9
ER  - 

@article{
author = "Mićić, Maja M. and Milić-Vukašinović, Tanja and Mitrić, Miodrag and Jokić, Bojan M. and Suljovrujić, Edin H.",
year = "2013",
abstract = "Silver nanoparticles were fabricated via in situ reduction of silver nitrate embedded in swollen P(HEMA/IA) hydrogel, using gamma radiolysis method. Copolymeric hydrogels based on 2-hydroxyethyl methacrylate (HEMA) and itaconic acid (IA), previously synthesised by gamma radiation for wound dressing application, were used as a carrier and a stabilising agent, while ethyl alcohol was used as a free radical scavenger. The influence of different P(HEMA/IA) hydrogels and silver salt concentrations on the size and distribution of nanoparticles was investigated. The Ag/P(HEMA/IA) nanocomposites were characterised by high resolution scanning electron microscopy, energy dispersive spectroscopy, wide-angle X-ray diffraction, UV-Vis spectroscopy and swelling measurements. Escherichia coli (Gram-negative bacterium), Staphylococcus aureus (Gram-positive bacterium) and Candida albicans (fungus) were used to prove the antimicrobial properties of Ag/P(HEMA/IA) nanocomposites. The inhibition kinetics of bacteria growth was investigated by measuring the colony-forming unit. The antimicrobial effectiveness of the Ag/P(HEMA/IA) hydrogel nanocomposite was demonstrated even at small silver concentrations. P(HEMA/IA) hydrogels containing nanosilver particles was found suitable to be used as wound dressing.",
journal = "Polymer Bulletin",
title = "Radiation synthesis, characterisation and antimicrobial application of novel copolymeric silver/poly(2-hydroxyethyl methacrylate/itaconic acid) nanocomposite hydrogels",
volume = "70",
number = "12",
pages = "3347-3357",
doi = "10.1007/s00289-013-1026-9"
}

Mićić, M. M., Milić-Vukašinović, T., Mitrić, M., Jokić, B. M.,& Suljovrujić, E. H.. (2013). Radiation synthesis, characterisation and antimicrobial application of novel copolymeric silver/poly(2-hydroxyethyl methacrylate/itaconic acid) nanocomposite hydrogels. in Polymer Bulletin, 70(12), 3347-3357.
https://doi.org/10.1007/s00289-013-1026-9

Mićić MM, Milić-Vukašinović T, Mitrić M, Jokić BM, Suljovrujić EH. Radiation synthesis, characterisation and antimicrobial application of novel copolymeric silver/poly(2-hydroxyethyl methacrylate/itaconic acid) nanocomposite hydrogels. in Polymer Bulletin. 2013;70(12):3347-3357.
doi:10.1007/s00289-013-1026-9 .

Mićić, Maja M., Milić-Vukašinović, Tanja, Mitrić, Miodrag, Jokić, Bojan M., Suljovrujić, Edin H., "Radiation synthesis, characterisation and antimicrobial application of novel copolymeric silver/poly(2-hydroxyethyl methacrylate/itaconic acid) nanocomposite hydrogels" in Polymer Bulletin, 70, no. 12 (2013):3347-3357,
https://doi.org/10.1007/s00289-013-1026-9 . .

TY  - JOUR
AU  - Miličević, Dejan S.
AU  - Trifunovic, S.
AU  - Popović, Milan
AU  - Milic, T. Vukašinović
AU  - Suljovrujić, Edin H.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3229
AB  - This paper studies the influence of orientation and structural peculiarities on the radiation-induced oxidation/crosslinking changes in different polyethylenes (PEs). For this reason, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and high density polyethylene (HDPE) were oriented via solid-state stretching at an elevated temperature. Later on, oriented samples were gamma-irradiated in air to various absorbed doses (up to 700 kGy). In order to investigate orientation- and radiation-induced changes in morphology, surface microstructures were analyzed by optical (OM) and scanning electron microscopy (SEM). Differential scanning calorimetry (DSC), IR spectroscopy and gel measurements were used to determine changes in crystallinity, oxidative degradation and degree of network formation, respectively. Conclusions derived according to these methods were compared. The differences in morphology, crystallinity, oxidation and gel behavior are caused primarily by the structural peculiarities of different types of PEs, the heterogeneous nature of radiation effects in semicrystalline polymers and, in the case of oriented samples, by the molecular orientation as well. The presented results reveal complicate crosslinking behavior with orientation while increase/decrease in crystallinity/oxidation with draw ratio was clearly evident. (C) 2007 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - The influence of orientation on the radiation-induced crosslinking/oxidative behavior of different PEs
VL  - 260
IS  - 2
SP  - 603
EP  - 612
DO  - 10.1016/j.nimb.2007.04.157
ER  - 

@article{
author = "Miličević, Dejan S. and Trifunovic, S. and Popović, Milan and Milic, T. Vukašinović and Suljovrujić, Edin H.",
year = "2007",
abstract = "This paper studies the influence of orientation and structural peculiarities on the radiation-induced oxidation/crosslinking changes in different polyethylenes (PEs). For this reason, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and high density polyethylene (HDPE) were oriented via solid-state stretching at an elevated temperature. Later on, oriented samples were gamma-irradiated in air to various absorbed doses (up to 700 kGy). In order to investigate orientation- and radiation-induced changes in morphology, surface microstructures were analyzed by optical (OM) and scanning electron microscopy (SEM). Differential scanning calorimetry (DSC), IR spectroscopy and gel measurements were used to determine changes in crystallinity, oxidative degradation and degree of network formation, respectively. Conclusions derived according to these methods were compared. The differences in morphology, crystallinity, oxidation and gel behavior are caused primarily by the structural peculiarities of different types of PEs, the heterogeneous nature of radiation effects in semicrystalline polymers and, in the case of oriented samples, by the molecular orientation as well. The presented results reveal complicate crosslinking behavior with orientation while increase/decrease in crystallinity/oxidation with draw ratio was clearly evident. (C) 2007 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "The influence of orientation on the radiation-induced crosslinking/oxidative behavior of different PEs",
volume = "260",
number = "2",
pages = "603-612",
doi = "10.1016/j.nimb.2007.04.157"
}

Miličević, D. S., Trifunovic, S., Popović, M., Milic, T. V.,& Suljovrujić, E. H.. (2007). The influence of orientation on the radiation-induced crosslinking/oxidative behavior of different PEs. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 260(2), 603-612.
https://doi.org/10.1016/j.nimb.2007.04.157

Miličević DS, Trifunovic S, Popović M, Milic TV, Suljovrujić EH. The influence of orientation on the radiation-induced crosslinking/oxidative behavior of different PEs. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2007;260(2):603-612.
doi:10.1016/j.nimb.2007.04.157 .

Miličević, Dejan S., Trifunovic, S., Popović, Milan, Milic, T. Vukašinović, Suljovrujić, Edin H., "The influence of orientation on the radiation-induced crosslinking/oxidative behavior of different PEs" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 260, no. 2 (2007):603-612,
https://doi.org/10.1016/j.nimb.2007.04.157 . .