Copper-based nanomaterials as peroxidase candidates for intelligent colorimetric detection and antibacterial applications  

作　　者：Yanyan Huang Huimin Zhong Cong Jiang Jiahui Yang Jingwen Zhang Fei Zhao Chaoqun Liu 

机构地区：[1]College of Light Industry and Food Engineering,Nanjing Forestry University,Nanjing,210037,China [2]College of Pharmacy,Institutes of Environment and Medicine,Henan University,Kaifeng,475004,China

出　　处：《Particuology》2024年第1期126-135,共10页颗粒学报（英文版）

基　　金：Financial support was provided by the Natural Science Foundation of jiangsu(grant No.BK20200764);the Key Technologies R&D Program of Henan(grant No.212102310231).

摘　　要：With natural polyphenol compound tannic acid(TA)as the ingredient,copper tannate(CuTA)nanolayer material was formed by self-assembly under the conditions of heating and copper ion.Copper ion and tannic acid could coordinate to form Cu-O-C structure which was similar to the Fe-N-C structure of natural heme enzymes.In addition,the obtained CuTA nanomaterial possessed excellent peroxidase-like catalytic activity and stability.Based on this excellent enzymatic activity,CuTA nanomaterials could be used for colorimetric detection of hydrogen peroxide with a smartphone and decomposition of organic dyes.Based on the structural characteristics and catalytic activity,the copper tannate nanozymes could also serve as potential antibacterial reagents to effectively inhibit the growth of gram-negative and positive bacteria in a low hydrogen peroxide level.This work may promote the exploration of novel peroxidase mimetics and broaden the applications of nanozymes.

关 键 词：Nanozyme Colorimetric detection SMARTPHONE ANTIBACTERIA 

分 类 号：TB383[一般工业技术—材料科学与工程]