Abstract
Accurate determination of glutathione (GSH) in food and vegetable is significant to instruct the appropriate supplementation of GSH in the human body. Light-responsive enzyme mimics have been widely used in detecting GSH due to controllable temporal and spatial accuracy. However, exploring a potential organic mimic enzyme with excellent catalytic efficiency keeps challenging. Herein, a benzobisthiazole organic oxidase mimic was successfully prepared by a simple and low-cost method. Based on its high light-responsive oxidase-like activity, it was used for high reliable colorimetric determination of GSH in food and vegetable for only 1min with a large linear range of 0.02-30μM and a low detection limit of 5.3nM. This study provides a novel strategy to obtain powerful light-responsive oxidase mimics and holds great potential for rapid and accurate detection of GSH in food and vegetables.
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