CoO/Co-graphene quantum dots as an oxidative mimetic nanozyme for the colorimetric detection of l-cysteine

Abstract

The preparation of cobalt-based nanozyme with high oxidase-like activity still needs more efforts. In the study, we reported the synthesis of CoO/Co-Tryptophan-functional graphene quantum dot hybird (CoO/Co-Try-GQD). Firstly, cobalt ions...