In-Situ surface modification of terpinen-4-ol plasma polymers for increased antibacterial activity

Kumar, Avishek, Al-Jumaili, Ahmed, Bazaka, Kateryna, Mulvey, Peter, Warner, Jeffrey, and Jacob, Mohan V. (2020) In-Situ surface modification of terpinen-4-ol plasma polymers for increased antibacterial activity. Materials, 13 (3). 586.

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Surface modification of thin films is often performed to enhance their properties. In this work, in situ modification of Terpinen-4-ol (T4) plasma polymer is carried out via simultaneous surface functionalization and nanoparticle immobilization. Terpinen-4-ol plasma polymers surface were decorated with a layer of ZnO nanoparticles in an oxygen plasma environment immediately after polymer deposition. A combination of hydrophilic modification and ZnO nanoparticle functionalization of the T4 polymer surface led to an enhancement in antibacterial properties by factor of 3 (from 0.75 to 0.25 CFU. mm-2). In addition, ZnO nanoparticle-modified coatings demonstrated improved UV absorbing characteristics in the region of 300-400 nm by 60% relative to unmodified coatings. The ZnO modified coatings were transparent in the visible region of 400-700 nm. The finding points towards the potential use of ZnO nanoparticle-modified T4 plasma polymers as optically transparent UV absorbing coatings.

Item ID: 67248
Item Type: Article (Research - C1)
ISSN: 1996-1944
Keywords: Antibacterial coatings, In-situ polymer surface modification, Plasma polymers, ZnO functionalization
Copyright Information: © This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Date Deposited: 21 Apr 2021 23:29
FoR Codes: 40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics @ 100%
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