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Prevention of biofouling by bio-inspired photocatalytic nanocoatings
Dobretsov, S. (2017). Prevention of biofouling by bio-inspired photocatalytic nanocoatings, in: International Symposium on Corrosion and Fouling. Two natural curses for a ship's hull. Antwerp Maritime Academy 3 April 2017. pp. 12
In: (2017). International Symposium on Corrosion and Fouling. Two natural curses for a ship's hull. Antwerp Maritime Academy 3 April 2017. Antwerp Maritime Academy: Antwerpen. 30 pp., meer
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Documenttype: Samenvatting
Trefwoorden
    Fouling
    Materials > Coating materials
    Marien/Kust
Auteur  Top 
  • Dobretsov, S.
Abstract
    Biofouling is undesirable growth of organisms on submerged installation and it has heavy economic penalties. Current methods of antifouling defense (AF) are based on usage of toxic biocides that kill marine organisms and pollute the environment. The natural AF defense mechanism of some seaweeds that inhibits biofouling by production of reactive oxygen species (ROS) inspired us to mimic this process by fabricating ZnO nanorod photocatalytic coating. AF activity of fishing nets modified with ZnO nanocoating was compared with uncoated nets (control) and nets painted with commercial copper-based AF paint. One-month experiment in tropical waters showed that nanocoatings reduced bacterial abundances by 3-fold compared to the control and had higher antifouling performance over AF paint. Metagenomic analysis of prokaryotic and eukaryotic fouling organisms using MiSeq next generation sequencing platform proved that nanocoatings compared to AF paint were not selectively enriching communities with the resistant and pathogenic species. The proposed bio-inspired nanocoating is an important contribution towards environmentally friendly AF technologies.
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