Center for Soft Condensed Matter Physics and Interdisciplinary Research & School of Physical Science and Technology, Soochow University, Suzhou 215006, People's Republic of China.
State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China.
ACS Appl Mater Interfaces. 2020 Jun 17;12(24):27632-27639. doi: 10.1021/acsami.0c07949. Epub 2020 Jun 2.
A novel strategy for preparing universal antifogging and antimicrobial coating is reported by the means of one-step coating and Ag nanoparticle (AgNP) formation in situ. A series of hydrophilic glycopolymers including poly(-3,4-dihydroxybenzenethyl methacrylamide--2-deoxy-2-(methacrylamido)glucopyranose) (P1s) and poly(-3,4-dihydroxybenzenethyl methacrylamide--methacrylic acid2-deoxy-2-(methacrylamido)glucopyranose) (P2s) were synthesized by sunlight-induced reverse addition-fragmentation chain transfer (RAFT) polymerization. With the ability to strongly immobilize onto organic and inorganic surfaces (i.e., glass slide, silicon wafer, and polycarbonate) via catechol groups, P1s are very convenient to form superhydrophilic and transparent thin coatings, which result in a unique antifogging property. Additionally, the antimicrobial property is realized by in situ AgNPs forming P2 coatings, facilitated by the presence of carboxyl groups and catechol groups in the polymer chain, rendering it superior antimicrobial activity against both Gram-negative and Gram-positive microorganisms. This antifogging and antimicrobial thin coating shows strong prospects in medical and optical devices, with the extra benefits of avoiding potential pathogen infection in vitro or while in storage.
本文报道了一种通过一步涂覆和原位形成银纳米粒子（AgNP）的方法制备通用防雾和抗菌涂层的新策略。一系列亲水性糖聚合物，包括聚（-3,4-二羟基苯乙基甲基丙烯酰胺-2-脱氧-2-（甲基丙烯酰胺基）葡萄糖）（P1s）和聚（-3,4-二羟基苯乙基甲基丙烯酰胺-甲基丙烯酸 2-脱氧-2-（甲基丙烯酰胺基）葡萄糖）（P2s），通过阳光诱导的反向加成-断裂链转移（RAFT）聚合合成。由于其邻苯二酚基团能够强烈固定在有机和无机表面（即玻璃载玻片、硅片和聚碳酸酯）上，P1s 非常方便地形成超亲水和透明的薄膜涂层，从而具有独特的防雾性能。此外，通过聚合物链中存在的羧基和邻苯二酚基团，原位形成 AgNPs 的 P2 涂层实现了抗菌性能，使其对革兰氏阴性和革兰氏阳性微生物均具有优异的抗菌活性。这种防雾和抗菌薄膜涂层在医疗和光学设备方面具有广阔的应用前景，同时还具有避免体外或储存期间潜在病原体感染的额外好处。
