The effect of polyterpenol thin film surfaces on bacterial viability and adhesion
Bazaka, Kateryna, Jacob, Mohan V., Truong, Vi Khanh, Crawford, Russell J., & Ivanova, Elena P. (2011) The effect of polyterpenol thin film surfaces on bacterial viability and adhesion. Polymers, 3(1), pp. 388-404.
The nanometer scale surface topography of a solid substrate is known to influence the extent of bacterial attachment and their subsequent proliferation to form biofilms. As an extension of our previous work on the development of a novel organic polymer coating for the prevention of growth of medically significant bacteria on three-dimensional solid surfaces, this study examines the effect of surface coating on the adhesion and proliferation tendencies of Staphylococcus aureus and compares to those previously investigated tendencies of Pseudomonas aeruginosa on similar coatings. Radio frequency plasma enhanced chemical vapor deposition was used to coat the surface of the substrate with thin film of terpinen-4-ol, a constituent of tea-tree oil known to inhibit the growth of a broad range of bacteria. The presence of the coating decreased the substrate surface roughness from approximately 2.1 nm to 0.4 nm. Similar to P. aeruginosa, S. aureus presented notably different patterns of attachment in response to the presence of the surface film, where the amount of attachment, extracellular polymeric substance production, and cell proliferation on the coated surface was found to be greatly reduced compared to that obtained on the unmodified surface. This work suggests that the antimicrobial and antifouling coating used in this study could be effectively integrated into medical and other clinically relevant devices to prevent bacterial growth and to minimize bacteria-associated adverse host responses.
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|Item Type:||Journal Article|
|Keywords:||nanoarchitecture, plasma polymerization, terpinen-4-ol|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2011 by the authors; licensee MDPI, Basel, Switzerland.|
|Copyright Statement:||This article is an open access article
distributed under the terms and conditions of the Creative Commons Attribution license
|Deposited On:||20 Jan 2016 22:41|
|Last Modified:||22 Jan 2016 02:59|
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