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Tannic acid anchored layer-by-layer covalent deposition of parasin I peptide for antifouling and antimicrobial coatings

机译:依宁酸锚定的乘碱基I型肽沉积,用于防污和抗微生物涂料

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摘要

Tannic acid can serve as an initiator anchor for surface functionalization. Parasin I is an antimicrobial peptide derived from histone. Multilayer coatings on stainless steel were prepared by alternative deposition of these two materials via the Michael addition/Schiff base reaction-enabled layer-by-layer (LBL) deposition technique. The as-prepared multilayer coating exhibits good resistance to Gram-negative bacteria (Pseudomonas sp. and E. coli), Gram-positive bacteria (S. aureus and S. epidermidis) and microalgae (Amphora coffeaeformis). The antifouling and antimicrobial efficacy increase with an increasing number of the assembled multilayers. The stability and durability of multilayer coatings were also ascertained by prolonged exposure to seawater. The LBL covalently deposited multilayer coatings are thus potentially useful as effective and environmental benign coatings to combat biofouling in marine and aqueous environments.
机译:鞣酸可以用作表面官能化的引发剂锚。 寄生蛋白是一种衍生自组蛋白的抗微生物肽。 通过迈克尔添加/席夫碱基反应的层 - 逐层(LBL)沉积技术,通过替代沉积这两种材料来制备不锈钢上的多层涂层。 制备的多层涂层对革兰氏阴性细菌(Pseudomonas Sp。和大肠杆菌),革兰氏阳性细菌(Aureus和S.表皮)和微藻(Amphora Coffeaeformis)造成良好的抗性。 使用越来越多的组装多层的防污和抗微生物功效增加。 多层涂层的稳定性和耐久性也通过长时间暴露于海水来确定。 因此,LBL共价沉积的多层涂层可能是有效和环境良性涂层,以打击海洋和含水环境中的生物污染。

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  • 来源
    《RSC Advances》 |2016年第18期|共10页
  • 作者单位

    Natl Univ Singapore Dept Chem &

    Biomol Engn Singapore 119260 Singapore;

    Natl Univ Singapore Dept Chem &

    Biomol Engn Singapore 119260 Singapore;

    Natl Univ Singapore Dept Chem &

    Biomol Engn Singapore 119260 Singapore;

    Natl Univ Singapore Dept Chem &

    Biomol Engn Singapore 119260 Singapore;

    Natl Univ Singapore Dept Chem &

    Biomol Engn Singapore 119260 Singapore;

    Natl Univ Singapore Dept Chem &

    Biomol Engn Singapore 119260 Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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