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Antialgal activity of poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) brushes against the marine alga Ulva

Lookup NU author(s): Dr John Finlay

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Abstract

© 2017 Informa UK Limited, trading as Taylor & Francis Group.Marine biofouling has detrimental effects on the environment and economy, and current antifouling coatings research is aimed at environmentally benign, non-toxic materials. The possibility of using contact-active coatings is explored, by considering the antialgal activity of cationic poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) brushes. The antialgal activity was investigated via zoospore settlement and sporeling growth assays of the marine algae Ulva linza and U. lactuca. The assay results for PDMAEMA brushes were compared to those for anionic and neutral surfaces. It was found that only PDMAEMA could disrupt zoospores that come into contact with it, and that it also inhibits the subsequent growth of normally settled spores. Based on the spore membrane properties, and characterization of the PDMAEMA brushes over a wide pH range, it is hypothesized that the algicidal mechanisms are similar to the bactericidal mechanisms of cationic polymers, and that further development could lead to successful contact-active antialgal coatings.

Publication metadata

Author(s): Yandi W, Mieszkin S, Callow ME, Callow JA, Finlay JA, Liedberg B, Ederth T

Publication type: Article

Publication status: Published

Journal: Biofouling

Year: 2017

Volume: 33

Issue: 2

Pages: 169-183

Online publication date: 02/02/2017

Acceptance date: 09/01/2017

ISSN (print): 0892-7014

ISSN (electronic): 1029-2454

Publisher: Taylor and Francis Ltd.

URL: https://doi.org/10.1080/08927014.2017.1281409

DOI: 10.1080/08927014.2017.1281409

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