Rh single-atom nanozymes for efficient ascorbic acid oxidation and detection
Xiaoyue Shi, Juan Li, Yu Xiong, Ziyu Liu, Jinhua Zhan, Bin Cai
Abstract
Ag/AgCl). Combined with the screen-printing technology, a miniaturized Rh SAzyme biosensor was firstly constructed for tracking dynamic trends of AA in the human subject and detecting AA content in nutritional products. The as-prepared biosensor exhibits excellent detection performances with a wide linear range of 10.0 μM-53.1 mM, a low detection limit of 0.26 μM, and a long stability of 28 days. This work opens a door for the design of artificial single-atom electrocatalysts to mimic natural enzymes and their subsequent application in biosensors.
Topics & Concepts
Ascorbic acidAtom (system on chip)ChemistryCombinatorial chemistryComputer scienceEmbedded systemFood scienceAdvanced Nanomaterials in CatalysisElectrochemical sensors and biosensorsAdvanced biosensing and bioanalysis techniques