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A versatile platform to achieve mechanically robust mussel-inspired antifouling coatings via grafting-to approach†
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2017-11-28 00:00:00 , DOI: 10.1039/c7tb02400b Youbing Mu 1, 2, 3, 4, 5 , Zelin Wu 1, 2, 3, 4, 5 , Danfeng Pei 1, 2, 3, 4, 5 , Jiming Wang 1, 2, 3, 4, 5 , Xiaobo Wan 1, 2, 3, 4, 5
Journal of Materials Chemistry B ( IF 6.1 ) Pub Date : 2017-11-28 00:00:00 , DOI: 10.1039/c7tb02400b Youbing Mu 1, 2, 3, 4, 5 , Zelin Wu 1, 2, 3, 4, 5 , Danfeng Pei 1, 2, 3, 4, 5 , Jiming Wang 1, 2, 3, 4, 5 , Xiaobo Wan 1, 2, 3, 4, 5
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Although significant progress has been made in mussel-inspired antifouling coatings, most of them suffer from low mechanical stability. Herein, we present a facile and efficient method to fabricate mechanically robust mussel-inspired antifouling coatings. A polyvinyl alcohol (PVA)-based mussel-inspired coating material, which exhibits the highest adhesion capability (always at 5B level in a tape adhesion test based on the ASTM D3359 method) and excellent anti-abrasive properties (little mass loss after 1000 abrasion cycles), is used as a universal platform for further modification to introduce antifouling properties. Intriguingly, the hydroxyl groups in this PVA-based coating material are used as the anchor for the installation of either hydrophilic or hydrophobic segments (or both) via a grafting-to approach. Single modifiers, methoxypolyethylene glycol (MPEG), sodium 2-hydroxyethanesulfonate (SHS) and 1H,1H,2H,2H-perfluorooctan-1-ol (PFO), and complex modifiers, MPEG/PFO, are tethered onto the coating through an effective urethane bond formation reaction to endow the surfaces with antifouling efficacy. The functionalized surfaces are shown to be effective in preventing bovine serum albumin (BSA) adsorption and in reducing bacterial (Gram-positive bacteria S. aureus and Gram-negative bacteria E. coli) adhesion. More importantly, such modification does not influence the strong adhesion and excellent anti-abrasion properties of the coating. To the best of our knowledge, this is the first example of merging excellent mechanical properties and antifouling capability for mussel-inspired coatings, which might find niches in a broad range of applications in the industrial and biomedical fields.
中文翻译：
一个多功能平台，可通过接枝方法获得机械坚固的贻贝启发式防污涂料†
尽管在贻贝启发式防污涂料方面取得了重大进展，但大多数涂料的机械稳定性均很差。在这里，我们提出了一种简便而有效的方法来制造机械坚固的贻贝类防污涂料。聚乙烯醇（PVA）基的贻贝启发性涂料，具有最高的附着力（在基于ASTM D3359方法的胶带附着力测试中始终为5B水平）和优异的抗磨性能（1000次磨损后质量损失很小）循环）用作进一步修改以引入防污特性的通用平台。有趣的是，在此基础PVA涂覆材料中的羟基基团被用作锚的安装亲水性或疏水性链段的（或两者）通过嫁接方法。将单一改性剂甲氧基聚乙二醇（MPEG），2-羟基乙烷磺酸钠（SHS）和1 H，1 H，2 H，2 H-全氟辛烷-1-醇（PFO）和复杂改性剂MPEG / PFO拴在通过有效的氨基甲酸酯键形成反应使涂料具有防污效果。已显示功能化表面可有效防止牛血清白蛋白（BSA）吸附并减少细菌（革兰氏阳性细菌金黄色葡萄球菌和革兰氏阴性细菌大肠杆菌））附着力。更重要的是，这种改性不会影响涂层的强附着力和优异的抗磨性能。据我们所知，这是融合贻贝型涂料优异的机械性能和防污性能的第一个例子，这可能在工业和生物医学领域中有广泛的应用领域。
更新日期：2017-11-28
中文翻译：
一个多功能平台，可通过接枝方法获得机械坚固的贻贝启发式防污涂料†
尽管在贻贝启发式防污涂料方面取得了重大进展，但大多数涂料的机械稳定性均很差。在这里，我们提出了一种简便而有效的方法来制造机械坚固的贻贝类防污涂料。聚乙烯醇（PVA）基的贻贝启发性涂料，具有最高的附着力（在基于ASTM D3359方法的胶带附着力测试中始终为5B水平）和优异的抗磨性能（1000次磨损后质量损失很小）循环）用作进一步修改以引入防污特性的通用平台。有趣的是，在此基础PVA涂覆材料中的羟基基团被用作锚的安装亲水性或疏水性链段的（或两者）通过嫁接方法。将单一改性剂甲氧基聚乙二醇（MPEG），2-羟基乙烷磺酸钠（SHS）和1 H，1 H，2 H，2 H-全氟辛烷-1-醇（PFO）和复杂改性剂MPEG / PFO拴在通过有效的氨基甲酸酯键形成反应使涂料具有防污效果。已显示功能化表面可有效防止牛血清白蛋白（BSA）吸附并减少细菌（革兰氏阳性细菌金黄色葡萄球菌和革兰氏阴性细菌大肠杆菌））附着力。更重要的是，这种改性不会影响涂层的强附着力和优异的抗磨性能。据我们所知，这是融合贻贝型涂料优异的机械性能和防污性能的第一个例子，这可能在工业和生物医学领域中有广泛的应用领域。
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