Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.apsusc.2008.10.063
DC FieldValue
dc.titleAntibacterial activities of surface modified electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) fibrous membranes
dc.contributor.authorYao, C.
dc.contributor.authorLi, X.
dc.contributor.authorNeoh, K.G.
dc.contributor.authorShi, Z.
dc.contributor.authorKang, E.T.
dc.date.accessioned2014-06-17T07:36:01Z
dc.date.available2014-06-17T07:36:01Z
dc.date.issued2009-01-01
dc.identifier.citationYao, C., Li, X., Neoh, K.G., Shi, Z., Kang, E.T. (2009-01-01). Antibacterial activities of surface modified electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) fibrous membranes. Applied Surface Science 255 (6) : 3854-3858. ScholarBank@NUS Repository. https://doi.org/10.1016/j.apsusc.2008.10.063
dc.identifier.issn01694332
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/63484
dc.description.abstractPoly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) membrane, with its excellent chemical and mechanical properties, has good potential for broad applications. However, due to its hydrophobic nature, microbial colonization is commonly encountered. In this work, electrospun PVDF-HFP fibrous membranes were surface modified by poly(4-vinyl-N-alkylpyridinium bromide) to achieve antibacterial activities. The membranes were first subjected to plasma pretreatment followed by UV-induced surface graft copolymerization of 4-vinylpyridine (4VP) and quaternization of the grafted pyridine groups with hexylbromide. The chemical composition of the surface modified PVDF-HFP electrospun membranes was studied by X-ray photoelectron spectroscopy (XPS). The morphology and mechanical properties of pristine and surface modified PVDF-HFP fibrous membranes were characterized by scanning electron microscopy (SEM) and tensile test, respectively. The antibacterial activities of the modified electrospun PVDF-HFP fibrous membranes were assessed against Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli). The results showed that the PVDF-HFP fibrous membranes modified with quaternized pyridinium groups are highly effective against both bacteria with killing efficiency as high as 99.9999%. © 2008 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.apsusc.2008.10.063
dc.sourceScopus
dc.subjectAntibacterial
dc.subjectElectrospinning
dc.subjectPoly(vinylidene fluoride-co-hexafluoropropylene)
dc.subjectSurface modification
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.apsusc.2008.10.063
dc.description.sourcetitleApplied Surface Science
dc.description.volume255
dc.description.issue6
dc.description.page3854-3858
dc.description.codenASUSE
dc.identifier.isiut000261972100067
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