Immobilization of Ytterbium by Plant Polyphenols for Antibiofilm Materials with Highly Effective Activity and Long-Term Stability,Industrial & Engineering Chemistry Research

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Immobilization of Ytterbium by Plant Polyphenols for Antibiofilm Materials with Highly Effective Activity and Long-Term Stability
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-09-22 , DOI: 10.1021/acs.iecr.0c03534
Lu Liu ₁ , Xiao Xiao _{1,

2,

3} , Xia Li ₁ , Meifeng Li ₁ , Ke Li ₁ , Xuepin Liao _{1,

2,

3} , Bi Shi _{1,

2,

3}

Affiliation

The demand for innovative materials with favorable antiadhesion and antibiofilm abilities against bacteria has become imperative, given the increasing cognition of the harmfulness of biofilm colonization. Herein, typical plant polyphenols (PPs), including catechin, epigallocatechin gallate, and black wattle tannin (BWT), are utilized to catch and immobilize rare-earth ions onto the polyamide membrane to prepare advanced antibiofilm materials. The introduction of ytterbium (Yb) endows the polyamide membrane with excellent antiadhesion and antibiofilm abilities against Pseudomonas aeruginosa. The stability of Yb is improved by covalent immobilization by PPs. This effect significantly enhances the long-term antibacterial and antibiofilm activities under static and dynamic conditions. Furthermore, the Yb@BWT membrane exhibits the best antibacterial and antibiofilm performance among all prepared membranes with ∼100% inhibition for planktonic bacteria and biofilm formation after 2 days of soaking in artificial urine. The promising antibacterial and antibiofilm abilities of membranes prepared through the covalent immobilization of Yb by PPs indicate that the method reported here is a prospective facile, effective, and low-cost strategy for fabricating novel materials to prevent biofilm formation.

中文翻译：

植物多酚固定化for用于具有高活性和长期稳定性的抗生物膜材料

鉴于人们日益认识到生物膜定殖的危害性，对具有抗细菌粘附和抗生物膜能力的创新材料的需求已迫在眉睫。在本文中，典型的植物多酚（PPs），包括儿茶素，表没食子儿茶素没食子酸酯和黑瓦特丹宁（BWT），被用来捕获稀土离子并将其固定在聚酰胺膜上，从而制备高级抗生物膜材料。（Yb）的引入赋予聚酰胺膜优异的抗铜绿假单胞菌附着力和生物膜能力。Yb的稳定性通过PPs的共价固定而得到改善。这种作用显着增强了静态和动态条件下的长期抗菌和生物膜活性。此外，Yb @ BWT膜在所有制备的膜中均表现出最佳的抗菌和生物膜性能，在人造尿液中浸泡2天后，对浮游细菌和生物膜形成的抑制率约为100％。通过将PP共价固定Yb制备的膜具有广阔的抗菌和抗生物膜能力，这表明本文报道的方法是一种制备新型材料以防止生物膜形成的简便，有效且低成本的策略。

更新日期：2020-09-22

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