化学
过氧化物酶
过氧化氢
多酚氧化酶
百里香酚
酶分析
多酚
酶
抗氧化剂
氧化酶试验
组合化学
生物化学
食品科学
精油
作者
Jie Liu,Luwei Wang,Donghui Song,Yongxin Li,Hui Huang
出处
期刊:Talanta
[Elsevier]
日期:2024-07-01
卷期号:274: 125951-125951
标识
DOI:10.1016/j.talanta.2024.125951
摘要
A new nanozyme (CuGaa) with switchable enzyme-like activity of peroxidase and polyphenol oxidase was successfully prepared based on guanidinoacetic acid and copper. The two enzyme-like activities can be easily switched by changing temperature or adding MnCl2. At 4 °C, polyphenol oxidase-like activity decreased to nearly 1%, and the material is mainly characterized by peroxidase-like activity at this point. However, at 60 °C in the presence of 20 mM MnCl2, the peroxidase-like activity decreased to nearly 10%, and the polyphenol oxidase-like activity of the materials increased to 140%. Based on the switchable enzyme-like activity of CuGaa, detection methods for thymol and hydrogen peroxide were developed. In addition, a rapid combination strategy was further established combined with logic gate technology for the facile identification of complex contamination in honey, which provided new ideas for low-cost and rapid honey identification.
科研通智能强力驱动
Strongly Powered by AbleSci AI