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Modulation of barnacle (Balanus amphitrite Darwin) cyprid settlement behavior by sulfobetaine and carboxybetaine methacrylate polymer coatings

Lookup NU author(s): Dr Nicholas Aldred, Professor Tony Clare


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Zwitterionic polymers such as poly(sulfobetaine methacrylate) (polySBMA) and poly(carboxybetaine methacrylate) (polyCBMA) have demonstrated impressive fouling-resistance against proteins and mammalian cells. In this paper, the effects of these surface chemistries on the settlement and behavior of an ubiquitous fouling organism, the cypris larva of the barnacle Balanus amphitrite (=Amphibalanus amphitrite), were studied in the laboratory. Conventional settlement assays and behavioral analysis of cyprids using Noldus Ethovision 3.1 demonstrated significant differences in settlement and behavior on different surfaces. Cyprids did not settle on the polySBMA or polyCBMA surfaces over the course of the assay, whereas settlement on glass occurred within expected limits. Individual components of cyprid behavior were shown to differ significantly between glass, polySBMA and polyCBMA. Cyprids also responded differently to the two zwitterionic surfaces. On polySBMA, cyprids were unwilling or unable to settle, whereas on polyCBMA cyprids did not attempt exploration and left the surface quickly. In neither case was toxicity observed. It is concluded that a zwitterionic approach to fouling-resistant surface development has considerable potential in marine applications.

Publication metadata

Author(s): Aldred N, Li GZ, Gao Y, Clare AS, Jiang SY

Publication type: Article

Publication status: Published

Journal: Biofouling

Year: 2010

Volume: 26

Issue: 6

Pages: 673-683

Print publication date: 01/08/2010

ISSN (print): 0892-7014

ISSN (electronic): 1029-2454

Publisher: Taylor & Francis Ltd.


DOI: 10.1080/08927014.2010.506677


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Funder referenceFunder name
N00014-05-1-0767US Office of Naval Research
N00014-07-1-1036US Office of Naval Research
N00014-08-1-1240US Office of Naval Research
N00014-04-1-0409US Office of Naval Research