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Synthesis and antimicrobial effects of highly dispersed, cellulose-stabilized silver/cellulose nanocomposites

Alahmadi, N. S.; Kelly, S. M.; Betts, J. W.; Heinze, T.; Wadhawan, J. D.; Koschella, A.

Authors

N. S. Alahmadi

J. W. Betts

T. Heinze

A. Koschella



Abstract

Small, spherical silver nanoclusters were synthesised on the surface of paper as a model cellulosic fibre substrate by a standard chemical reduction method. The concentration of the silver nanoclusters on the substrate surface is roughly proportional to the initial silver salt concentration. However, there is a noticeable degree of nanocluster aggregation to larger agglomerates. The addition of small amounts of α-cellulose, carboxymethyl cellulose or aminocellulose during the synthesis of the silver/cellulose nanocomposites suppresses this aggregation and significantly increases the concentration of the silver nanoclusters on the surface of the fibres of cellulose. These small, surface-stabilised silver nanoclusters, with the desired size and morphology, deposited from aqueous solutions on the surface of cellulosic cotton fibres, show enhanced antibacterial activity against MRSA compared to that of the corresponding silver/cotton nanocomposites prepared in the absence of a cellulosic surface stabiliser.

Journal Article Type Article
Publication Date Jan 19, 2018
Journal RSC Advances
Print ISSN 2046-2069
Electronic ISSN 2046-2069
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 8
Issue 7
Pages 3646-3656
APA6 Citation Alahmadi, N. S., Kelly, S. M., Betts, J. W., Heinze, T., Wadhawan, J. D., & Koschella, A. (2018). Synthesis and antimicrobial effects of highly dispersed, cellulose-stabilized silver/cellulose nanocomposites. RSC advances, 8(7), 3646-3656. https://doi.org/10.1039/c7ra12280b
DOI https://doi.org/10.1039/c7ra12280b
Keywords General Chemistry; General Chemical Engineering
Publisher URL https://pubs.rsc.org/en/content/articlelanding/2018/RA/C7RA12280B

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