氧化呋咱环
乙二醇
抗菌剂
金黄色葡萄球菌
材料科学
纳米颗粒
聚乙烯醇
纳米技术
微生物学
一氧化氮
化学
细菌
有机化学
生物
遗传学
复合材料
作者
Yiyi Liu,Xiaoyu Chen,XiangFeng Lai,Christian K. O. Dzuvor,Letian Lyu,Seong Hoong Chow,Li He,Lei Yu,Yajun Wang,Jiangning Song,Hsien‐Yi Hsu,Tsung‐Wu Lin,Philip Wai Hong Chan,Hsin‐Hui Shen
标识
DOI:10.1021/acsami.2c08833
摘要
Nitric oxide (NO)-releasing nanoparticles are effective nanomedicines with diverse therapeutic advantages compared with small molecule-based NO donors. Here, we report a new class of furoxan-based NO-releasing nanoparticles using a simple, creative yet facile coassembly approach. This is the first time we demonstrated that the coassembled NO-releasing nanoparticles with poly(ethylene glycol)101-block-poly(propylene glycol)56-block-poly(ethylene glycol)101 (Pluronic F127) had potent antimicrobial efficacies against methicillin-resistant Staphylococcus aureus (MRSA) strains. Nanoparticles obtained from the coassembly of either 4-(1-(3-methylpentan-5-ol)oxyl)(3-phenylsulfonyl) furoxan (compound 1) or 4-methoxy(3-phenylsulfonyl) furoxan (compound 2) with Pluronic F127 exhibit 4-fold improved antimicrobial activities compared to their self-assembled counterparts without Pluronic F127. 5(6)-Carboxylfluorescein (CF) leakage experiments further reveal that both coassembled NO-releasing nanoparticles show stronger interactions with lipid bilayers than those self-assembled alone. Subsequently, their strong plasma membrane-damaging capabilities are confirmed under both high-resolution optical microscopy and scanning electron microscopy characterizations. This coassembly approach could be readily applied to other small molecule-based antimicrobials, providing new solutions and important insights to further antimicrobial recipe design.
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