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Fabrication of Durably Antibacterial Cotton Fabrics by Robust and Uniform Immobilization of Silver Nanoparticles via Mussel-Inspired Polydopamine/Polyethyleneimine Coating
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-04-28 , DOI: 10.1021/acs.iecr.9b07076 Gongyan Liu 1 , Jun Xiang 1 , Qiongfen Xia 1 , Kaijun Li 1 , Hui Yan 1 , Ling Yu 2
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-04-28 , DOI: 10.1021/acs.iecr.9b07076 Gongyan Liu 1 , Jun Xiang 1 , Qiongfen Xia 1 , Kaijun Li 1 , Hui Yan 1 , Ling Yu 2
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Bacterial contamination of cotton dressing can potentially cause wound infection. To solve this problem, stable and uniform decoration of silver nanoparticles (AgNPs) onto cotton fabrics is a promising strategy to endow antibacterial activity to prevent wound infection. Herein, a facile codeposition of polydopamine (PDA)/polyethyleneimine (PEI) was performed on cotton fabrics for uniformly cross-linking gallic acid (GA)-stabilized silver nanoparticles (GA@AgNPs) via Michael addition and hydrogen bonding interactions. The as-prepared GA@AgNPs/PDA–PEI-coated cotton fabrics possessed a negatively charged surface because of the high-density GA on AgNPs, showing low cytotoxicity, hemocompatibility, and hemostatic ability. Because of its stable, uniform, and anionic interface composed of GA@AgNPs, this GA@AgNPs/PDA–PEI coating could effectively resist bacterial adhesion by electrostatic repulsion and also kill the attached bacteria through sustained Ag+ release, exhibiting strong, broad-spectrum, and durable antibacterial activities toward bacteria. Therefore, these GA@AgNPs/PDA–PEI-coated cotton fabrics show great potential for clinical application as antibacterial wound dressings.
中文翻译：
贻贝启发性聚多巴胺/聚乙烯亚胺涂层通过银纳米颗粒的稳固和均匀固定制备耐用的抗菌棉织物
棉花敷料的细菌污染可能会导致伤口感染。为了解决这个问题，在棉织物上稳定且均匀地装饰银纳米颗粒（AgNPs）是赋予抗菌活性以防止伤口感染的一种有前途的策略。本文中，在棉织物上进行了聚多巴胺（PDA）/聚乙烯亚胺（PEI）的简便共沉积，以通过迈克尔加成和氢键相互作用将没食子酸（GA）稳定化的银纳米颗粒（GA @ AgNPs）均匀交联。制备好的GA @ AgNPs / PDA-PEI涂层棉织物表面带有负电荷，因为AgNPs上的高密度GA具有较低的细胞毒性，血液相容性和止血能力。由于它由GA @ AgNP组成的稳定，均匀且阴离子界面，+释放，对细菌表现出强的，广谱的和持久的抗菌活性。因此，这些GA @ AgNPs / PDA-PEI涂层的棉织物在临床上具有作为抗菌伤口敷料的巨大潜力。
更新日期：2020-04-28
中文翻译：
贻贝启发性聚多巴胺/聚乙烯亚胺涂层通过银纳米颗粒的稳固和均匀固定制备耐用的抗菌棉织物
棉花敷料的细菌污染可能会导致伤口感染。为了解决这个问题，在棉织物上稳定且均匀地装饰银纳米颗粒（AgNPs）是赋予抗菌活性以防止伤口感染的一种有前途的策略。本文中，在棉织物上进行了聚多巴胺（PDA）/聚乙烯亚胺（PEI）的简便共沉积，以通过迈克尔加成和氢键相互作用将没食子酸（GA）稳定化的银纳米颗粒（GA @ AgNPs）均匀交联。制备好的GA @ AgNPs / PDA-PEI涂层棉织物表面带有负电荷，因为AgNPs上的高密度GA具有较低的细胞毒性，血液相容性和止血能力。由于它由GA @ AgNP组成的稳定，均匀且阴离子界面，+释放，对细菌表现出强的，广谱的和持久的抗菌活性。因此，这些GA @ AgNPs / PDA-PEI涂层的棉织物在临床上具有作为抗菌伤口敷料的巨大潜力。
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