Anal Bioanal Chem 2021 May 14. Epub 2021 May 14.
The Talent Culturing Plan for Leading Disciplines of Shandong Province, Department of Chemistry and Chemical Engineering, Jining University, Qufu, 273155, Shandong, China.
Anderson-type polyoxometalate containing Fe and Mo, (NH)[HFe(III)MoO] (FeMo), was found to work as an oxidase-mimicking nanoenzyme for the first time, exhibiting the ability of catalytic oxidation of o-phenylenediamine (OPD), 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTs), and 3,3',5,5'-tetramethylbenzidine (TMB), which features easy synthesis, low cost, simple operation, and low consumption. Attributed to the nature of FeMo and Fenton-like effect, a novel sensor based on two consecutive "turn on" fluorescence was developed for detecting dopamine (DA) by employing the FeMo-OPD system, and the linear range was from 1 to 100 μM with the detection limit 0.0227 μM (3σ/s). Read More