The target rulings the oxidation and degradation ability of the ZIF-67/PtPd: A seesaw-like two-channel colorimetric platform for organophosphorus detection

IF 4 2区农林科学 Q2 CHEMISTRY, APPLIED

Journal of Food Composition and Analysis Pub Date : 2024-11-22 DOI:10.1016/j.jfca.2024.107001

Yunzhu Tan, Di Yang, Zaofen Wang, Xinyu Zhang, Danping Chen, Zhenchao Wang, Bingqian Liu

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Abstract

Herein, the seesaw-like two channels colorimetric platform constructed for organophosphorus pesticides (OPs) determination was based on the dual functions of ZIF-67/PtPd (ZP), which could participate not only in the oxidation of 3,3’,5,5’-tetramethylbenzidine (TMB), but also in the degradation of methylene blue (MB). Then the thiocholine (TCh) generated by the reaction of acetylcholinesterase (AChE) and acetylcholine (ATCh) could inhibit the two processes (TMB channel and MB channel), resulting in the color reversal of the two channels, respectively. Additionally, the target OPs could inhibit the AChE activity, leading to decrease the TCh production, so the inhibitory effect of TCh on two channels was weaken, thus affecting the output of the signal value. Based on it, the developed platform exhibited outstanding ability to detect AChE and OPs. Besides, as alkaloids could inhibit AChE, as same as OPs, so the platform have a potential to screen the AChE inhibitors from natural alkaloids.

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来源期刊

Journal of Food Composition and Analysis 工程技术-食品科技

CiteScore

6.20

自引率

11.60%

发文量

601

审稿时长

53 days

期刊介绍： The Journal of Food Composition and Analysis publishes manuscripts on scientific aspects of data on the chemical composition of human foods, with particular emphasis on actual data on composition of foods; analytical methods; studies on the manipulation, storage, distribution and use of food composition data; and studies on the statistics, use and distribution of such data and data systems. The Journal''s basis is nutrient composition, with increasing emphasis on bioactive non-nutrient and anti-nutrient components. Papers must provide sufficient description of the food samples, analytical methods, quality control procedures and statistical treatments of the data to permit the end users of the food composition data to evaluate the appropriateness of such data in their projects. The Journal does not publish papers on: microbiological compounds; sensory quality; aromatics/volatiles in food and wine; essential oils; organoleptic characteristics of food; physical properties; or clinical papers and pharmacology-related papers.