@conference{
author = "Nešović, Katarina and Janković, Ana and Radetić, Tamara and Kojić, Vesna and Mišković-Stanković, Vesna",
year = "2019",
abstract = "Nauka i inženjerstvo biomaterijala u poslednje vreme pokazuju sve veću težnju ka
pronalaženju novih materijala za obloge za rane, gde su naročito važna poboljšana svojstva
kao što su apsorpciona moć, mehanička svojstva i niska adhezivnost. Umrežene matrice
hidrogelova su odlični potencijalni nosači za kontrolisano otpuštanje antibakterijskih
agenasa, kao što su nanočestice srebra. Hitozan je posebno interesantna komponenta
obloga za rane, zbog svoje prirodne antibakterijske aktivnosti i sposobnosti stabilizacije
nanočestica. Cilj ovog rada je priprema novih obloga za rane na bazi polivinil-alkohola i
hitozana sa elektrohemijski sintetisanim nanočesticama srebra, u obliku hidrogela. Dobijene
su sferne nanočestice srebra, prečnika oko 5-10 nm, što je potvrđeno UV-vidljivom
spektroskopijom i transmisionom elektronskom mikroskopijom. Bubrenje i otpuštanje
srebra je praćeno u fosfatnom puferu koji imitira fiziološke uslove, dok je antibakterijska
aktivnost potvrđena na bakterijskim sojevima Staphylococcus aureus i Escherichia coli.
Dobijeni netoksični hidrogelovi (što je utvrđeno MTT testom) imaju izuzetan potencijal za
primene kao obloge za rane nove generacije., Recently, the biomaterials science and engineering fields have seen a shift towards novel
hydrogel materials, especially for wound dressing applications where improved properties,
such as high sorption ability, good mechanical properties and low adhesiveness are of
utmost importance. The cross linked hydrogel matrices are excellent potential carriers for
controlled release of antibacterial agents, such as silver nanoparticles (AgNPs). Chitosan is
an especially attractive option for wound dressing applications, because of its intrinsic
antibacterial activity and the ability to stabilize AgNPs. The aim of this work is the production
of poly(vinyl alcohol) and chitosan based hydrogel matrices with electrochemically
synthesized AgNPs for wound dressing materials applications. The obtained AgNPs were
spherical with 5-10 nm diameters, as confirmed by UV-visible spectroscopy and
transmission electron microscopy. The swelling and release behaviors of AgNP-embedded
hydrogels were evaluated in phosphate buffer, mimicking physiological environment, and
the antibacterial activity was confirmed against both Staphylococcus aureus and Escherichia
coli. The obtained non-toxic hydrogel materials (as affirmed by MTT test) have excellent
potential to be used as novel antibacterial wound dressings.",
publisher = "Beograd : Srpsko hemijsko društvo",
journal = "Kratki izvodi radova / 56. savetovanje Srpskog hemijskog društva , Niš 7. i 8. juni 2019",
title = "Novi materijali za obloge za rane sa elektrohemijski sintetisanim nanočesticama srebra, Novel wound dressing materials containing electrochemically synthesized silver nanoparticles",
pages = "27",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7246"
}