Resistance of Amphiphilic Polysaccharides against Marine Fouling Organisms

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• 作者：S. Bauer ; M. Alles ; M. P. Arpa-Sancet ; E. Ralston ; G. W. Swain ; N. Aldred ; A. S. Clare ; J. A. Finlay ; M. E. Callow ; J. A. Callow ; A. Rosenhahn
• 刊名：Biomacromolecules
• 出版年：2016
• 出版时间：March 14, 2016
• 年：2016
• 卷：17
• 期：3
• 页码：897-904
• 全文大小：463K
• ISSN：1526-4602

文摘

Amphiphilic coatings are promising candidates for fouling-release applications. As hydrophilic components, polysaccharides are interesting and environmentally benign building blocks. We used covalently coupled alginic acid (AA) and hyaluronic acid (HA) and postmodified them with a hydrophobic fluorinated amine. The surfaces showed good stability under marine conditions and fluorination led to a decreased uptake of Ca²⁺ ions after modification. In single species settlement assays (bacteria, diatoms, barnacle cypris larvae), the modification decreased the settlement density and/or the adhesion strength of many of the tested species. Field studies supported findings of the laboratory experiments, as hydrophobic modification of AA and HA decreased diatom colonization.