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Effects of surface charge and Gibbs surface energy on the settlement behaviour of barnacle cyprids (Balanus amphitrite)
Linköping University, Department of Physics, Chemistry and Biology, Molecular Physics. Linköping University, Faculty of Science & Engineering.
Newcastle University.
Newcastle University.
Linköping University, Department of Physics, Chemistry and Biology, Molecular Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-6175-1815
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2011 (English)In: Biofouling (Print), ISSN 0892-7014, E-ISSN 1029-2454, Vol. 27, no 9, 1043-1055 p.Article in journal (Refereed) Published
Abstract [en]

Gibbs surface energy has long been considered to be an important parameter in the design of fouling-resistant surfaces for marine applications. Rigorous testing of the hypothesis that settlement is related to Gibbs surface energy however has never been accomplished, due mainly to practical limitations imposed by the necessary combination of surface engineering and biological evaluation methods. In this article, the effects of surface charge and Gibbs surface energy on the settlement of cyprids of an important fouling barnacle, Balanus amphitrite, were evaluated. Settlement assays were conducted on a range of self-assembled monolayers (SAMs) (CH(3)-, OH-, COOH-, N(CH(3))(3)(+)-, NH(2)-terminated), presented in gold-coated polystyrene well plates, varying in terms of their surface charge and Gibbs surface energy. Contrary to contemporary theory, settlement was not increased by high-energy surfaces, rather the opposite was found to be the case with cyprids settling in greater numbers on a low-energy CH(3)- SAM compared to a high-energy OH- SAM. Settlement was also greater on negatively-charged SAMs, compared to neutral and positively-charged SAMs. These findings are discussed in the context of data drawn from surfaces that varied in multiple characteristics simultaneously, as have been used previously for such experiments. The finding that surface charge, rather than total surface energy, may be responsible for surface selection by cyprids, will have significant implications for the design of future fouling-resistant materials.

Place, publisher, year, edition, pages
Taylor and Francis: STM, Behavioural Science and Public Health Titles / Taylor and Francis , 2011. Vol. 27, no 9, 1043-1055 p.
Keyword [en]
barnacle cyprid, self-assembled monolayer, settlement assay, Gibbs surface energy, surface charge, Balanus amphitrite
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-73105DOI: 10.1080/08927014.2011.625474ISI: 000296722800009OAI: oai:DiVA.org:liu-73105DiVA: diva2:466452
Note

Funding Agencies|European Community|237997|Office of Naval Research|N00014-08-1-1240|COST Action|TD0906|

Available from: 2011-12-16 Created: 2011-12-16 Last updated: 2017-05-31

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Petrone, LuigiSukkaew, PitsiriEderth, ThomasLiedberg, Bo

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