Anderson polyoxometalates with intrinsic oxidase-mimic activity for “turn on” fluorescence sensing of dopamine

Polyoxometalate Functionalized Sensors: A Review

“…This water-soluble inorganic-hybrid compound was investigated as the first aqueous-phase sensor for picric acid and Pd 2+ , with a low detection limit of 0.18 and 0.80 ppb, respectively, within WHO/US EPA prescribed limit for palladium. Another example was recently reported by Qian et al ( Li et al, 2021 ), where the Anderson type (NH 4 ) 3 [H 6 Fe(III)Mo 6 O 24 ] (FeMo 6 ), working as an oxidase-mimic nanoenzyme, exhibited the ability to catalytic oxidase of o -phenylenediamine (OPD), 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTs), and 3,3′,5,5′-tetramethylbenzidine (TMB). The proposed sensor based on two consecutive “turn on” fluorescence was developed for DA by employing the FeMo 6 -OPD system, and the linear range was from 1 to 100 μM with the detection limit 0.0227 μM.…”

Application of Polyoxometalate-based composites for sensor systems: A review

“…The manufactured biosensor has an extraordinarily decreased LOD of 0.4 nM and outstanding efficiency, with a linear curve range extending from 5.0 10 -9 M to 5.0 10 -4 M. This sensing technique may be defined as a biocompatible and novel substrate for dehydrogenase-based ECL biosensors since it combines facile sensor production with enzymatic selectivity. This research demonstrates a simple method for immobilizing ECL types within the versatile POM@mrGO support matrix and encourages the enhancement of magneto-controlled ECL biosensing for use in bioanalytical and analytical fields [32].…”

“…POMs are significantly able to adapt with and deliver a special number of electrons without any change or decomposition in their construction. Isopolyanions (IPAs) and heteropolyanions (HPAs) are components of POMs and are repeatedly created into aqueous media [32][33][34]. Besides, the oxoanions are occasionally assembled in a non-aqueous medium or a solid state as in minerals.…”

Four Anderson-type [TeMo6O24]6−-based metal–organic complexes with a new bis(pyrimidine)-bis(amide): multifunctional electrochemical and adsorption performances

“…[1][2][3][4][5][6][7] Anderson-type POMs as one typical structure of the variety of POMs show good performances. [8][9][10] For example, Yang's group has reported three M-Anderson covalent organic frameworks (COFs) (M = Mn, Co, Fe), which exhibited good catalytic activity for visible light decomposition of organic dyes. 11 Jin and co-workers have firstly used Anderson-type [NiW 6 IJOH) 6 O 18 ] 4− as catalyst for green synthesis of adipic acid with a high conversion rate.…”