纳米片
黑磷
纳米技术
纳米材料
抗菌剂
活性氧
银纳米粒子
材料科学
体内
纳米颗粒
化学
组合化学
生物
生物技术
生物化学
有机化学
光电子学
作者
Meijuan Liang,Minyi Zhang,Shanshan Yu,Qiong Wu,Ke Ma,Yingying Chen,Xiaoqing Liu,Chunsen Li,Fuan Wang
出处
期刊:Small
[Wiley]
日期:2020-03-01
卷期号:16 (13)
被引量:76
标识
DOI:10.1002/smll.201905938
摘要
Abstract Nanobactericides represent one of the most efficient and promising strategies for eliminating bacterial infection considering the increasing resistance threats of conventional antibiotics. Black phosphorus (BP) is the most exciting postgraphene layered 2D nanomaterial with convincing physiochemical properties, yet the study of BP‐based antibiotics is still in its infancy. Here, a compact silver nanoparticle (AgNP)–doped black phosphorus nanosheet (BPN) is constructed to synergistically enhance solar disinfection through the promoted reactive oxygen species (ROS) photogeneration, which is attributed to the improved electron–hole separation and recombination of BPNs as revealed from the systematic experimental studies. An in‐depth density functional theory (DFT) calculation confirms that the integrated AgNPs provide a preferred site for facilitating the adsorption and activation of O 2 , thus promoting the more efficient and robust ROS generation on BPN–AgNP nanohybrids. Besides the enhanced photoinduced ROS, the anchored AgNPs simultaneously lead to a dramatically increased affinity toward bacteria, which facilitates a synergetic pathogen inactivation. Significantly, the convincing antimicrobial BPN–AgNP contributes to the prominent wound healing and antimicrobial ability in vivo with minimized biological burden. This sophisticated design of new 2D nanohybrids opens a new avenue for further exploiting BP‐based nanohybrids in portable bandage and broad‐spectrum disinfection applications.
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