Mechanical and antibacterial properties of ZnO/chitosan bio-composite films

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dc.authorid0000-0001-7515-5427en_US
dc.contributor.authorKalemtaş, Ayşe
dc.contributor.authorKoçer, Hasan Basri
dc.contributor.authorAydın, Ahmet
dc.contributor.authorTerzioğlu, Pınar
dc.contributor.authorAydın, Gülsüm
dc.date.accessioned2022-08-05T06:04:32Z
dc.date.available2022-08-05T06:04:32Z
dc.date.issued2021en_US
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.description.abstractIn the current study, ZnO/chitosan bio-composite films were produced via solution-casting method. Two different ZnO powders, micrometer (d(50) approximately equal to 1.5 mu m) and nanometer sized (d(50) approximately equal to 100 nm), were used to investigate the effect of ZnO particle size and concentration (0, 2, and 8% w/w of chitosan) on the mechanical and antibacterial properties of the ZnO/chitosan bio-composite films. The incorporation of the ZnO powders into the chitosan film resulted in an increase in the tensile strength (TS) and a decrease in the elongation at break (EB) values. Mechanical test results revealed that TS and EB properties were considerably affected (p < 0.05) by the concentration and particle size of the ZnO reinforcement. Disc diffusion method demonstrated good antibacterial activities of bio-composite films containing high amount of ZnO (8% w/w of chitosan) against Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, and Bacillus subtilis. The growth-limiting effect of the films was more pronounced for S. aureus and K. pneumoniae. Due to enhanced TS and imparted antibacterial activity of the produced ZnO/chitosan bio-composite films, these materials are promising candidates for applications such as food packaging, wound dressing, and antibacterial coatings for various surfaces.en_US
dc.identifier.doi10.1515/polyeng-2021-0143en_US
dc.identifier.endpage47en_US
dc.identifier.issn0334-6447
dc.identifier.issn2191-0340
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage35en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/2009
dc.identifier.volume42en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorKalemtaş, Ayşe
dc.language.isoenen_US
dc.publisherWALTER DE GRUYTERen_US
dc.relation.ispartofJOURNAL OF POLYMER ENGINEERINGen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectantibacterial activityen_US
dc.subjectbio-composite filmen_US
dc.subjectchitosanen_US
dc.subjectelongation at breaken_US
dc.subjecttensile strengthen_US
dc.subjectzinc oxideen_US
dc.titleMechanical and antibacterial properties of ZnO/chitosan bio-composite filmsen_US
dc.typeArticleen_US

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