Disentangling the “tip-effects” enhanced antibacterial mechanism of Ag nanoparticles

作者：Shenli Wang, Yanping Zhang, Xuan Chen, Stefanos Mourdikoudis, Shengshi Fan, Haoyu Li, Sergio Gómez‐Graña, Shuncheng Ren, Guangchao Zheng · 发表于：Dalton Transactions · 年份：2024 · DOI：10.1039/d4dt01173b · 被引用次数：20 · 研究领域：Gold and Silver Nanoparticles Synthesis and Applications、Nanoparticles: synthesis and applications、Nanomaterials and Printing Technologies

at extremely low concentrations in comparison to Ag nanospheres, in particular under sunlight irradiation. The destroyed bacterial cell walls were examined by scanning electron microscopy. Through the investigation of ROS production, the generation efficiency of ROS is improved by the merit of sunlight irradiation thanks to the localized surface plasmon resonance (LSPR) properties of Ag NPs. However, a more significant improvement in ROS generation efficiency occurred in the presence of Ag nanotriangles contributed by the pronounced "tip effects". This study sheds light on the structure-performance relationship for the rational design of antibacterial agents.