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Anti-biofouling functional surfaces for marine aquaculture

Cox, Harrison J. and Cooper, Isaac and Kaspar, Heinrich F. and Packer, Michael A. and Badyal, Jas Pal S. (2022) 'Anti-biofouling functional surfaces for marine aquaculture.', Colloids and surfaces A: physicochemical and engineering aspects., 639 . p. 128313.


Aquaculture is a global-scale industry providing sustainable production of protein-rich foods required to feed the growing world population. Microalgae cultivation in aquaculture bioreactors can exude extracellular polymeric substances leading to biofouling of culture infrastructure and increased algal disease risk. A structure–behaviour relationship was developed by examining how the surface wettability of a range of functional nanocoatings impacts the extent of biofouling during exposure to continuous microalgae culture under normal hydrodynamic conditions. High-wetting (hydrophilic) surfaces were found to reduce biofouling better than water-repelling (hydrophobic) surfaces. Low toxicity in conjunction with antifouling behaviour was found for pulsed plasma poly(4-vinylpyridine) coated bioreactor surfaces (water contact angle = 38 ± 5°) towards the marine microalgal species Chaetoceros calcitrans, Chaetoceros mulleri, and Tisochrysis lutea (T-Iso), which are commonly grown as aquaculture food.

Item Type:Article
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Available under License - Creative Commons Attribution Non-commercial No Derivatives 4.0.
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Publisher statement:© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (
Date accepted:12 January 2022
Date deposited:01 February 2022
Date of first online publication:24 January 2022
Date first made open access:17 August 2022

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