Enhancing the efficacy of fouling-release coatings against fouling by Mytilus galloprovincialis using nanofillers

Carl, C., Poole, A.J., Vucko, M.J., Williams, M.R., Whalan, S., and De Nys, R. (2012) Enhancing the efficacy of fouling-release coatings against fouling by Mytilus galloprovincialis using nanofillers. Biofouling, 28 (10). pp. 1077-1091.

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Abstract

Fouling-release (FR) coatings minimise the adhesion strength of fouling organisms. This study describes improved technologies to control the settlement and adhesion of the important fouling organism Mytilus galloprovincialis by incorporating the nanofillers titanium dioxide (TiO₂) and carbon nanotubes (CNTs) in polydimethylsiloxane (PDMS) matrices. The incorporation of TiO₂ prevented larval settlement when photoactivated with UV light, even at the lowest concentration of the nanofiller (3.75 wt%). Notably, there was 100% mortality of pediveligers exposed to photoactivated TiO₂. However, plantigrades initially settled to photoactivated TiO₂, but their adhesion strength was significantly reduced on these surfaces in comparison to blank PDMS. In addition, plantigrades had high mortality after 6 h. In contrast to the enhanced antifouling and FR properties of PDMS incorporating TiO₂, the incorporation of CNTs had no effect on the settlement and adhesion of M. galloprovincialis.

Item ID: 23671
Item Type: Article (Research - C1)
ISSN: 1029-2454
Keywords: marine invertebrates; mussels; larval settlement; adhesion; titanium dioxide; carbon nanotubes
Date Deposited: 30 Nov 2012 00:04
FoR Codes: 10 TECHNOLOGY > 1002 Environmental Biotechnology > 100205 Environmental Marine Biotechnology @ 100%
SEO Codes: 88 TRANSPORT > 8898 Environmentally Sustainable Transport > 889899 Environmentally Sustainable Transport not elsewhere classified @ 100%
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