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Charged hydrophilic polymer brushes and their relevance for understanding marine biofouling
Linköping University, Department of Physics, Chemistry and Biology, Molecular Physics. Linköping University, Faculty of Science & Engineering.
University of Birmingham, Birmingham, UK.
Newcastle University, Newcastle, UK.
International Paint Ltd, Gateshead, UK.
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2016 (English)In: Biofouling (Print), ISSN 0892-7014, E-ISSN 1029-2454, Vol. 32, no 6, 609-625 p.Article in journal (Refereed) Published
Abstract [en]

The resistance of charged polymers to biofouling was investigated by subjecting cationic (PDMAEMA), anionic (PSPMA), neutral (PHEMA-co-PEG10MA), and zwitterionic (PSBMA) brushes to assays testing protein adsorption; attachment of the marine bacterium Cobetia marina; settlement and adhesion strength of zoospores of the green alga Ulva linza; settlement of barnacle (Balanus amphitrite and B. improvisus) cypris larvae; and field immersion tests. Several results go beyond the expected dependence on direct electrostatic attraction; PSPMA showed good resistance towards attachment of C. marina, low settlement and adhesion of U. linza zoospores, and significantly lower biofouling than on PHEMA-co-PEG10MA or PSBMA after a field test for one week. PDMAEMA showed potential as a contact-active anti-algal coating due to its capacity to damage attached spores. However, after field testing for eight weeks, there were no significant differences in biofouling coverage among the surfaces. While charged polymers are unsuitable as antifouling coatings in the natural environment, they provide valuable insights into fouling processes, and are relevant for studies due to charging of nominally neutral surfaces.

Place, publisher, year, edition, pages
Taylor & Francis, 2016. Vol. 32, no 6, 609-625 p.
Keyword [en]
Balanus spp.; Cobetia marina; Polymer brushes; Ulva linza; antifouling surfaces; surface charge
National Category
Physical Chemistry
URN: urn:nbn:se:liu:diva-127522DOI: 10.1080/08927014.2016.1170816ISI: 000377117900001PubMedID: 27125564OAI: diva2:925417

Funding agencies:This study has received funding from the European Community's Seventh Framework Program FP7/2007-2013 [ grant agreement number 237997] (SEACOAT). TE acknowledges financial support from the Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [Faculty Grant SFO-Mat-LiU #2009-00971].

Available from: 2016-05-02 Created: 2016-05-02 Last updated: 2016-06-27

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The full text will be freely available from 2017-04-29 11:09
Available from 2017-04-29 11:09

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Yandi, WetraEderth, Thomas
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