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Copper-based water repellent and antibacterial coatings by aerosol assisted chemical vapour deposition

Ozkan, E; Crick, CC; Taylor, A; Allan, E; Parkin, IP; (2016) Copper-based water repellent and antibacterial coatings by aerosol assisted chemical vapour deposition. Chemical Science , 7 (8) pp. 5126-5131. 10.1039/c6sc01150k. Green open access

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Abstract

The adhesion and proliferation of bacteria on solid surfaces presents a major challenge in both healthcare and industrial applications. In response to this problem, an effective and simple method is reported to fabricate superhydrophobic antibacterial copper coated polymer films via aerosol assisted chemical vapor deposition (AACVD). The material is characterized using a range of techniques including electron microscopy, water contact angle measurement and elemental mapping. The antibacterial activity of the modified film is tested against the Gram-negative bacterium, Escherichia coli, and the Gram-positive bacterium, Staphylococcus aureus and the film shows highly significant antibacterial activity against both bacteria (>4 log reduction in bacterial numbers) in 15 min and 60 min, respectively. In addition, all the CVD modified samples results in a significant reduction in bacterial cell adhesion compared to the control materials. Thus, we report a new film type that has dual mode of action-the superhydrophobicity helps limit cell adhesion combined with a cytotoxic copper induced bacteria kill.

Type: Article
Title: Copper-based water repellent and antibacterial coatings by aerosol assisted chemical vapour deposition
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/c6sc01150k
Publisher version: http://dx.doi.org/10.1039/c6sc01150k
Language: English
Additional information: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Keywords: Science & Technology, Physical Sciences, Chemistry, Multidisciplinary, Chemistry, Antimicrobial Activity, Nanoparticles, Surfaces, Nanomaterials, Filtration, Chemistry, Toxicity, Bacteria, Silver
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute > Microbial Diseases
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1510244
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