Polylactic acid (PLA)/Silver-NP/VitaminE bionanocomposite electrospun nanofibers with antibacterial and antioxidant activity

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buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage2643en_US
dc.citation.issueNumber10en_US
dc.citation.spage2643en_US
dc.citation.volumeNumber16en_US
dc.contributor.authorMunteanu, B. S.en_US
dc.contributor.authorAytac, Z.en_US
dc.contributor.authorPricope, G. M.en_US
dc.contributor.authorUyar, Tameren_US
dc.contributor.authorVasile, C.en_US
dc.date.accessioned2015-07-28T12:01:37Z
dc.date.available2015-07-28T12:01:37Z
dc.date.issued2014-10en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe antibacterial property of silver nanoparticles (Ag-NPs) and the antioxidant activity of Vitamin E have been combined by incorporation of these two active components within polylactic acid (PLA) nanofibers via electrospinning (PLA/Ag-NP/VitaminE nanofibers). The morphological and structural characterizations of PLA/Ag-NP/VitaminE nanofibers were performed by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy and X-ray diffraction. The average fiber diameter was 140 ± 60 nm, and the size of the Ag-NP was 2.7 ± 1.5 nm. PLA/Ag-NP/VitaminE nanofibers inhibited growth of Escherichia coli, Listeria monocytogenes and Salmonella typhymurium up to 100 %. The amount of released Ag ions from the nanofibers immersed in aqueous solution was determined by Inductively Coupled Plasma Mass Spectrometry, and it has been observed that the release of Ag ions was kept approximately constant after 10 days of immersion. The antioxidant activity of PLA/Ag-NP/VitaminE nanofibers was evaluated according to DPPH (2,2-diphenyl-1-picrylhydrazyl) method and determined as 94 %. The results of the tests on fresh apple and apple juice indicated that the PLA/Ag/VitaminE nanofiber membrane actively reduced the polyphenol oxidase activity. The multifunctional electrospun PLA nanofibers incorporating Ag-NP and Vitamin E may be quite applicable in food packaging due to the extremely large surface area of nanofibers along with antibacterial and antioxidant activities. These materials could find application in food industry as a potential preservative packaging for fruits and juices.en_US
dc.description.provenanceMade available in DSpace on 2015-07-28T12:01:37Z (GMT). No. of bitstreams: 1 7870.pdf: 1397738 bytes, checksum: 750912d088d47f4f4878d987956c883d (MD5)en
dc.identifier.doi10.1007/s11051-014-2643-4en_US
dc.identifier.issn1388-0764
dc.identifier.urihttp://hdl.handle.net/11693/12468
dc.language.isoEnglishen_US
dc.publisherSpringeren_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s11051-014-2643-4en_US
dc.source.titleJournal of Nanoparticle Researchen_US
dc.subjectAntibacterialen_US
dc.subjectAntioxidanten_US
dc.subjectElectrospinningen_US
dc.subjectNanofiberen_US
dc.subjectPolylactic acid (PLA)en_US
dc.subjectSilver nanoparticlesen_US
dc.subjectVitamin Een_US
dc.titlePolylactic acid (PLA)/Silver-NP/VitaminE bionanocomposite electrospun nanofibers with antibacterial and antioxidant activityen_US
dc.typeArticleen_US

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