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Antibacterial performance of ZnO-based fillers with mesoscale structured morphology in model medical PVC composites

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dc.title Antibacterial performance of ZnO-based fillers with mesoscale structured morphology in model medical PVC composites en
dc.contributor.author Machovský, Michal
dc.contributor.author Kuřitka, Ivo
dc.contributor.author Bažant, Pavel
dc.contributor.author Veselá, Daniela
dc.contributor.author Sáha, Petr
dc.relation.ispartof Materials Science and Engineering C
dc.identifier.issn 0928-4931 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2014
utb.relation.volume 41
dc.citation.spage 70
dc.citation.epage 77
dc.type article
dc.language.iso en
dc.publisher Elsevier
dc.identifier.doi 10.1016/j.msec.2014.04.034
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0928493114002264
dc.subject Antibacterial en
dc.subject Composite en
dc.subject Mesoscale en
dc.subject Microparticle en
dc.subject Nanostructure en
dc.subject Zinc oxide en
dc.description.abstract Three different ZnO-based antibacterial fillers having different morphologies in microscale region were prepared by the use of the microwave assisted synthesis protocol created in our laboratory with additional annealing in one case. Further, PVC composites containing 0.5-5 wt.% of ZnO based antibacterial fillers were prepared by melt mixing and characterized by scanning electron microscopy (SEM) and X-ray diffractometry (XRD). Mechanical testing showed no adverse effect on the working of polymer composites due to either of the fillers used or the applied processing conditions in comparison with the neat medical grade PVC. The surface antibacterial activity of the compounded PVC composites was assessed against Escherichia coli ATCC 8739 and Staphylococcus aureus ATCC 6538P according to ISO 22196: 2007 (E). All materials at almost all filler loading levels were efficient against both species of bacteria. The material with the most expanding morphology assuring the largest contact between filler and matrix achieved an excellent level of more than 99.9999% reduction of viable cells of E. coli in comparison to untreated PVC and performed very well against S. aureus, too. A correlation between the morphology and efficacy of the filler was observed and, as a result, a general rule was formulated which links the proneness of the microparticles to perform well against bacteria to their shape and morphology. © 2014 Elsevier B.V. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1003752
utb.identifier.obdid 43872004
utb.identifier.scopus 2-s2.0-84899915629
utb.identifier.wok 000338606700010
utb.source j-scopus
dc.date.accessioned 2014-06-17T19:02:11Z
dc.date.available 2014-06-17T19:02:11Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Machovský, Michal
utb.contributor.internalauthor Kuřitka, Ivo
utb.contributor.internalauthor Bažant, Pavel
utb.contributor.internalauthor Veselá, Daniela
utb.contributor.internalauthor Sáha, Petr
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