Mesoporous MnFe₂O₄ magnetic nanoparticles as a peroxidase mimic for the colorimetric detection of urine glucose.

ABSTRACT: Mesoporous MnFe₂O₄ magnetic nanoparticles (mMnFe₂O₄ MNPs) were prepared with a one-step synthesis method and characterized to possess intrinsic peroxidase-like activity, and had obvious advantages over other peroxidase nanozymes in terms of high catalytic affinity, high stability, mono-dispersion, easy preparation, and quick separation. The mMnFe₂O₄ MNPs were used as a colorimetric sensor for indirect sensing of urine glucose based on the sensing principle that H₂O₂ can be produced from glucose oxidation catalyzed by glucose oxidase (GOx), and under the catalysis of the mMnFe₂O₄ MNPs nanozyme, H₂O₂ can oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to produce a

SUBMITTER: Liu K 

PROVIDER: S-EPMC9038020 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature