A Multi-Catalytic Sensing for Hydrogen Peroxide, Glucose, and Organophosphorus Pesticides Based on Carbon Dots.

ABSTRACT: In this work, a facile one-pot hydrothermal route was employed to synthesize a series of fluorescent carbon dots (CDs) by using 20 natural amino acids, respectively, as the starting materials. It was found that the CDs synthesized using phenylalanine could possess the intrinsic peroxidase-like activity that could effectively catalyze a traditional peroxidase substrate like 3, 3', 5, 5'- tetramethylbenzidine (TMB) in the presence of H₂O₂ to produce a blue solution; thereby, a catalytic sensing system for H₂O₂ has been developed. On the basis of this catalytic reaction, together with the fact that glucose oxidase (GOx) can catalyze the hydrolysis of glucose to generate H₂O₂, a sensitive catalytic sensing system for glucose cou

SUBMITTER: Li P 

PROVIDER: S-EPMC8362664 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature