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Decoration of homopolymer vesicles by antibacterial ultrafine silver nanoparticles

机译：抗菌超细银纳米颗粒对均聚物囊泡的修饰

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摘要

Presented in this article is the proof of principle that silver nanoparticles can be decorated on homopolymer vesicles. The homopolymer vesicles are prepared by self-assembly of poly(2-(2-ethoxyethoxy)ethyl acrylate) (PEEA) in water/tetrahydrofuran (THF) solvent mixture. The -COOH end groups on the surface of the homopolymer vesicle facilitate the growth of ultrafine silver nanoparticles because of the electrostatic interactions between the negatively charged carboxyl group and positively charged Ag+ ions, which were in situ reduced by sodium borohydride (NaBH4). Those silver-decorated PEEA homopolymer vesicles exhibit good antibacterial activity against both Gram-positive and Gram-negative bacteria. This strategy may be extended to prepare more economic antibacterial agents and catalysts.
机译：本文提出的原理证明是，可以在均聚物囊泡上修饰银纳米颗粒。通过在水/四氢呋喃（THF）溶剂混合物中自组装聚（2-（2-乙氧基乙氧基）丙烯酸乙酯）（PEEA）制备均聚物囊泡。均聚物囊泡表面的-COOH端基促进了超细银纳米颗粒的生长，因为带负电荷的羧基与带正电荷的Ag +离子之间的静电相互作用被硼氢化钠（NaBH4）原位还原。这些装饰有银的PEEA均聚物囊泡对革兰氏阳性菌和革兰氏阴性菌均表现出良好的抗菌活性。可以扩展该策略以制备更经济的抗菌剂和催化剂。

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