化学
锆
阿布茨
检出限
卟啉
激进的
氧化酶试验
金属有机骨架
氧气
核化学
苯甲酸
比色法
组合化学
无机化学
光化学
抗氧化剂
有机化学
色谱法
酶
吸附
DPPH
作者
Shengyuan Zhang,Hong Li,Qinghai Xia,Dezhi Yang,Yaling Yang
标识
DOI:10.1111/1750-3841.17077
摘要
Abstract In this study, a porous coordination network zirconium‐porphyrin‐based nanoparticle with oxygen vacancies (OVs) was prepared using acetic acid and benzoic acid as modulators via a simple hydrothermal method. The presence of OVs was confirmed by various characterization methods and was found to enhance oxygen uptake and activation. This resulted in the generation of more reactive peroxyl radicals (•O 2 − ) and led to an improved oxidase (OXD) mimetic activity. Additionally, it promoted 2,2′‐azino‐bis(3‐ethylbenzthiazoline‐6‐sulfonic acid) (ABTS) oxidation, with a low K m value of 0.07 mM and a high V max of 1.47 × 10 −7 M·s −1 . As aflatoxin B1 (AFB1) inhibits the Pt@PCN‐222‐ABTS nanozyme system, a colorimetric probe for AFB1 detection was constructed. The limit of detection (LOD) was 0.074 µg·L −1 . This research presents a novel approach for designing a nanozymatic‐based colorimetric method to analyze trace AFB1 residues in food.
科研通智能强力驱动
Strongly Powered by AbleSci AI