Issue 12, 2021

Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces

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.

Graphical abstract: Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces

Supplementary files

Article information

Article type
Paper
Submitted
06 Oct 2020
Accepted
12 Mar 2021
First published
19 Mar 2021
This article is Open Access
Creative Commons BY license

J. Mater. Chem. B, 2021,9, 2918-2930

Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces

H. J. Cox, J. Li, P. Saini, J. R. Paterson, G. J. Sharples and J. P. S. Badyal, J. Mater. Chem. B, 2021, 9, 2918 DOI: 10.1039/D0TB02379E

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