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Anti-biofouling functional surfaces for marine aquaculture

Cox, Harrison J.; Cooper, Isaac; Kaspar, Heinrich F.; Packer, Michael A.; Badyal, Jas Pal S.

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Harrison J. Cox

Isaac Cooper

Heinrich F. Kaspar

Michael A. Packer


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.


Cox, H. J., Cooper, I., Kaspar, H. F., Packer, M. A., & Badyal, J. P. S. (2022). Anti-biofouling functional surfaces for marine aquaculture. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 639, Article 128313.

Journal Article Type Article
Acceptance Date Jan 12, 2022
Online Publication Date Jan 24, 2022
Publication Date Apr 20, 2022
Deposit Date Feb 1, 2022
Publicly Available Date Aug 17, 2022
Journal Colloids and surfaces A: physicochemical and engineering aspects.
Print ISSN 0927-7757
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 639
Article Number 128313


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