Bioassays and field immersion test: A comparison of marine antifouling activity of copper-free poly(methacrylic)-based coatings containing tertiary amines and ammonium salt groups

C. Bressy, Claire Hellio, J. Marechal, R. Tanguy, A. Margaillan

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper focuses on the activity spectrum of three dimethylalkyl tertiary amines as potential active molecules and the corresponding ammonium salt-based antifouling (AF) paints. Bioassays (using marine bacteria, microalgae and barnacles) and field tests were combined to assess the AF activity of coatings. Bioassay results demonstrated that the ammonium salt-based paints did not inhibit the growth of microorganisms (except the dimethyldodecylammonium-based coatings) and that the tertiary amines were potent towards bacteria, diatoms, and barnacle larvae at non-toxic concentrations (therapeutic ratio, LC50/EC50,
    Original languageEnglish
    Pages (from-to)769-777
    Number of pages9
    JournalBiofouling
    Volume26
    Issue number7
    DOIs
    Publication statusPublished - 2010

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