| Literature DB >> 27612828 |
Paula A Zapata1, Maialen Larrea2, Laura Tamayo3, Franco M Rabagliati4, M Ignacio Azócar3, Maritza Páez3.
Abstract
Silver nanofibers (Ag-Nfbs)~80nm in diameter were synthesized by hydrothermal treatment. The nanofibers (3 and 5wt%) were added in the initial feed together with the catalytic system. Polymerizations in an ethylene atmosphere were performed, yielding PE nanocomposites in situ with 3 and 5wt% content of Ag-Nfbs. The antibacterial effect of the silver-nanofiber composites was evaluated after incubation of Escherichia coli ATCC 25923 for 8h on their surface. Bacterial viability tests showed that the silver-nanofiber composites inhibited the growth of Escherichia coli ATCC 25923 by 88 and 56%. This behavior is attributed to increased silver ions release from the nanocomposite. TEM analysis showed that the antibacterial effect is associated with membrane disruption but not with changes in shape.Entities:
Keywords: Antibacterial properties; Biomaterials; In situ polymerization; Nanocomposites; Polyethylene; Silver nanofibers
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Year: 2016 PMID： 27612828 DOI： 10.1016/j.msec.2016.08.039
Source DB: PubMed Journal: Mater Sci Eng C Mater Biol Appl ISSN： 0928-4931 Impact factor: 7.328