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Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces

Cox, Harrison J. and Li, Jing and Saini, Preety and Paterson, Joy R. and Sharples, Gary J. and Badyal, Jas Pal S. (2021) 'Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces.', Journal of Materials Chemistry B, 9 (12). pp. 2918-2930.

Abstract

Antimicrobial essential oils are incorporated into mussel-inspired and natural plant polyphenol coatings as part of a single-step fabrication process. Polydopamine–cinnamaldehyde, polyethyleneimine–cinnamaldehyde, and tannic acid–cinnamaldehyde coatings exhibit strong antibacterial activities against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus (with the polydopamine- and tannic acid-based systems displaying log10 Reduction = 8). Cinnamaldehyde impregnation into porous non-woven polypropylene cloth, polytetrafluoroethylene membrane, and knitted cotton cloth also gives rise to high levels of antibacterial activity (log10 Reduction = 8). No loss in antibacterial efficacy is observed for non-woven polypropylene cloth impregnated with cinnamaldehyde over 17 recycle tests.

Item Type:Article
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution 4.0.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1039/D0TB02379E
Publisher statement:Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:12 March 2021
Date deposited:03 September 2021
Date of first online publication:19 March 2021
Date first made open access:03 September 2021

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