Modulating the electronic configuration of single-atom nanozymes using cobalt nanoclusters for enhanced mycotoxin degradation

• 全文链接

利用钴纳米簇调节单原子纳米酶的电子构型以增强霉菌毒素降解

关键词：

来源：

Food Chemistry

全文链接：

//agri.nais.net.cn/topic/downloadFile/a94ccf69-2b55-4969-b623-bb29772766de

来源地址：

https://doi.org/10.1016/j.foodchem.2025.143852

资源所属：

饲料用酶工程

类型：

学术文献

语种：

英语

原文发布日期：

2025-03-13

摘要：

Herein, Co- and Fe-based single-atom nanozymes (M/N-PC, M = Co or Fe) were successfully fabricated and their catalytic performances for patulin degradation were evaluated systematically. Co/N-PC, consisting of Co–N4 and nanoclusters sites, achieved a higher patulin degradation efficiency (99.4 %, within 60 min) than Fe/N-PC (only consisting of Fe–N5 sites). Synergistic interactions between Co–N4 and Co nanoclusters greatly enhanced electron density near the Fermi level in Co/N-PC, enabling its high catalytic performance. The degradation products of patulin exhibited negligible cytotoxicity. The M/N-PCs demonstrated good reusability, broad pH adaptability and high practical application potential for patulin degradation in apple juice. M/N-PC also exhibited high efficiency in degrading aflatoxin B1, deoxynivalenol and zearalenone (∼100 %, 10–40 min). This study provides in-depth insights into the relationship between metal active site structures in M/N-PCs and their catalytic properties for mycotoxin detoxification, offering guidance for the design of highly efficient single-atom nanozymes.