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Nature‐Inspired Construction of MOF@COF Nanozyme with Active Sites in Tailored Microenvironment and Pseudopodia‐Like Surface for Enhanced Bacterial Inhibition
Author(s) -
Zhang Lu,
Liu Zhengwei,
Deng Qingqing,
Sang Yanjuan,
Dong Kai,
Ren Jinsong,
Qu Xiaogang
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202012487
Subject(s) - nanotechnology , metal organic framework , substrate (aquarium) , catalysis , pseudopodia , chemistry , active site , function (biology) , covalent bond , materials science , organic chemistry , biochemistry , biology , adsorption , ecology , cell , evolutionary biology
Metal–organic frameworks (MOFs) have sparked increasing interest in mimicking the structure and function of natural enzymes. However, their catalytic and therapeutic efficiency are unsatisfactory due to the relatively lower catalytic activity. Herein, inspired by nature, a MOF@COF nanozyme has been designed as a high‐efficiency peroxidase mimic, with the metallic nodes of MOFs as active centres, the hierarchical nanocavities produced by the growth of covalent organic frameworks (COFs) as binding pockets to form tailored pore microenvironment around active sites for enriching and activating substrate molecules, to perform enhanced bacterial inhibition. Furthermore, the pseudopodia‐like surface of the COFs “skin” enabled the system to catch the bacteria effectively for further amplifying the therapeutic efficiency of MOF‐based nanozyme. We believe that the present study will not only facilitate the design of novel nanozymes, but also broaden the biological usage of MOF/COF‐based hybrid materials.