Biofouling of man-made surfaces by marine organisms is a global problem with both financial and environmental consequences. However, the development of non-toxic anti-biofouling coatings is challenged by the diversity of fouling organisms. One possible solution leverages coatings composed of diverse chemical constituents. Reversible addition-fragmentation chain-transfer (RAFT) photopolymerization was used to modify poly(dimethylsiloxane) (PDMSe) surfaces with polymeric grafts composed of three successive combinations of acrylamide, acrylic acid, and hydroxyethyl methacrylate. RAFT limited conflicting variables and allowed for the effect of graft chemistry to be isolated. While all compositions enhanced the anti-biofouling performance compared with the PDMSe control, the ternary, amphiphilic copolymer was the most effective with 98% inhibition of the attachment of zoospores of the green alga Ulva linza, 94% removal of cells of the diatom Navicula incerta, and 62% removal of cells of the bacterium Cellulophaga lytica. However, none of the graft compositions tested were able to mitigate reattachment of adult barnacles, Amphibalanus amphitrite.

中文翻译：

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具有 RAFT 光聚合丙烯酸酯/甲基丙烯酸酯表面接枝物的聚（二甲基硅氧烷）对模型海洋生物的抗生物污染特性

海洋生物对人造表面的生物污染是一个具有经济和环境后果的全球性问题。然而，无毒抗生物污垢涂料的开发受到污垢生物多样性的挑战。一种可能的解决方案是利用由多种化学成分组成的涂层。可逆加成断裂链转移 (RAFT) 光聚合用于改性聚二甲基硅氧烷 (PDMSe) 表面，其聚合物接枝由丙烯酰胺、丙烯酸和甲基丙烯酸羟乙酯的三种连续组合组成。RAFT 限制了相互冲突的变量，并允许分离接枝化学的影响。虽然与 PDMSe 对照相比，所有组合物都增强了抗生物污垢性能，但三元、两亲共聚物是最有效的，对绿藻 Ulva linza 游动孢子的附着有 98% 的抑制作用，对 Navicula incerta 硅藻的细胞有 94% 的去除率，对 Cellulophaga lytica 细菌的细胞有 62% 的去除率。然而，所测试的移植组合物均不能减轻成年藤壶 Amphibalanus amphitrite 的重新附着。