催化作用
过氧化氢
铜
基质(水族馆)
组合化学
抗氧化剂
过氧化物酶
化学
活性氧
抗菌活性
生物化学
生物
细菌
遗传学
酶
有机化学
生态学
作者
Peng Jiang,Ludan Zhang,Xiaolong Liu,Chenliang Ye,Peng Zhu,Ting Tan,Dingsheng Wang,Yuguang Wang
标识
DOI:10.1038/s41467-024-45255-6
摘要
Abstract The reaction system of hydrogen peroxide (H 2 O 2 ) catalyzed by nanozyme has a broad prospect in antibacterial treatment. However, the complex catalytic activities of nanozymes lead to multiple pathways reacting in parallel, causing uncertain antibacterial results. New approach to effectively regulate the multiple catalytic activities of nanozyme is in urgent need. Herein, Cu single site is modified on nanoceria with various catalytic activities, such as peroxidase-like activity (POD) and hydroxyl radical antioxidant capacity (HORAC). Benefiting from the interaction between coordinated Cu and CeO 2 substrate, POD is enhanced while HORAC is inhibited, which is further confirmed by density functional theory (DFT) calculations. Cu-CeO 2 + H 2 O 2 system shows good antibacterial properties both in vitro and in vivo. In this work, the strategy based on the interaction between coordinated metal and carrier provides a general clue for optimizing the complex activities of nanozymes.
科研通智能强力驱动
Strongly Powered by AbleSci AI