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dc.creatorKostić, Danijela
dc.creatorVidović, Srđan
dc.creatorObradović, Bojana
dc.date.accessioned2021-03-10T13:15:35Z
dc.date.available2021-03-10T13:15:35Z
dc.date.issued2016
dc.identifier.issn1388-0764
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3458
dc.description.abstractA stepwise experimental and mathematical modeling approach was used to assess silver release from nanocomposite Ag/alginate microbeads in wet and dried forms into water and into normal saline solution chosen as a simplified model for certain biological fluids (e.g., blood plasma, wound exudates, sweat, etc). Three phenomena were connected and mathematically described: diffusion of silver nanoparticles (AgNPs) within the alginate hydrogel, AgNP oxidation/dissolution and reaction with chloride ions, and diffusion of the resultant silver-chloride species. Mathematical modeling results agreed well with the experimental data with the AgNP diffusion coefficient estimated as 1.3 x 10(-18) m(2) s(-1), while the first-order kinetic rate constant of AgNP oxidation/dissolution and diffusivity of silver-chloride species were shown to be inversely related. In specific, rapid rehydration and swelling of dry Ag/alginate microbeads induced fast AgNP oxidation/dissolution reaction with Cl- and AgCl precipitation within the microbeads with the lowest diffusivity of silver-chloride species compared to wet microbeads in normal saline. The proposed mathematical model provided an insight into the phenomena related to silver release from nanocomposite Ca-alginate hydrogels relevant for use of antimicrobial devices and established, at the same time, a basis for further in-depth studies of AgNP interactions in hydrogels in the presence of chloride ions.en
dc.publisherSpringer, Dordrecht
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46010/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Nanoparticle Research
dc.subjectModeling and simulationen
dc.subjectEnvironmental effectsen
dc.subjectDiffusionen
dc.subjectSilver nanoparticlesen
dc.subjectSilver-chloride speciesen
dc.subjectAlginate hydrogelen
dc.titleSilver release from nanocomposite Ag/alginate hydrogels in the presence of chloride ions: experimental results and mathematical modelingen
dc.typearticle
dc.rights.licenseARR
dc.citation.issue3
dc.citation.other18(3): -
dc.citation.rankM22
dc.citation.volume18
dc.identifier.doi10.1007/s11051-016-3384-3
dc.identifier.scopus2-s2.0-84961151231
dc.identifier.wos000372283600003
dc.type.versionpublishedVersion


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Приказ основних података о документу