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dc.creatorDavidović, Slađana Z.
dc.creatorLazić, Vesna M.
dc.creatorMiljković, Miona G.
dc.creatorGordić, Milan V.
dc.creatorSekulić, Milica
dc.creatorMarinović-Cincović, Milena
dc.creatorRatnayake, Ishara S.
dc.creatorAhrenkiel, Scott Phillip
dc.creatorNedeljković, Jovan
dc.date.accessioned2020-01-28T07:20:31Z
dc.date.available2020-01-28T07:20:31Z
dc.date.issued2019
dc.identifier.issn0144-8617
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/8452
dc.description.abstractThe antibacterial ability of in situ prepared nanometer-sized silver particles, immobilized in agar-agar films, was studied as a function of the concentration of co-dopant, magnesium ions. Content of inorganic components in hybrid films was determined using inductively coupled plasma optic emission spectroscopy, and found to be low (<2 wt.-%). Morphology of prepared hybrid films, studied by transmission electron microscopy, revealed the presence of non-agglomerated and randomly distributed 10–20 nm silver nanoparticles (Ag NPs) within the agar-agar matrices. Fourier-transform infrared spectroscopy indicated the distinct chemical interaction between Ag NPs and polymer chains. Thermogravimetric analysis, as well as the determination of tensile strength, Young's modulus, and elongation at break showed improvement of thermal stability and mechanical properties of agar-agar matrices upon the incorporation of Ag NPs due to high compatibility between the hydrophilic organic component and inorganic components. The complete microbial reduction of Gram-positive bacteria Staphylococcus aureuswas observed for all agar-silver films, while satisfactory results were observed for Gram-negative bacteria Pseudomonas aeruginosa (≥99.6%). The release of Ag+ ions is suppressed by the increase of the concentration of Mg2+ ions and it was found to be significantly smaller (≤0.24 ppm) than the harmful ecological level (1 ppm). © 2019 Elsevier Ltden
dc.language.isoen
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31035/RS//
dc.rightsrestrictedAccess
dc.sourceCarbohydrate Polymers
dc.subjectAgar-agaren
dc.subjectSilver nanoparticlesen
dc.subjectNanocomposite filmsen
dc.subjectAntimicrobial activityen
dc.titleAntibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ionsen
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractAхренкиел, С Пхиллип; Ратнаyаке, Исхара С; Гордић, Милан; Миљковић, Миона; Секулић, Милица; Мариновић-Цинцовић, Милена; Давидовић, Слађана; Лазић, Весна; Недељковић, Јован М.;
dc.rights.holder© 2019 Elsevier Ltd
dc.citation.volume224
dc.citation.spage115187
dc.identifier.wos000484001200034
dc.identifier.doi10.1016/j.carbpol.2019.115187
dc.citation.rankaM21
dc.identifier.pmid31472840
dc.type.versionpublishedVersion
dc.identifier.scopus2-s2.0-85070631458


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