Colorimetric determination of D-penicillamine based on the peroxidase mimetic activity of hierarchical hollow MoS2 nanotubes

Erythrocyte-like Cu1.8S nanoparticles exhibited excellent peroxidase mimetic properties and were able to catalyse tetramethyl benzidine (TMB) to its blue oxidized product in the presence of H2O2 following the Fenton reaction. The catalytic process was inhibited by glutathione (GSH) and this phenomenon was used to construct an efficient sensing platform for the colorimetric determination of glutathione.

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Colorimetric determination of ascorbic acid based on carbon quantum dots as peroxidase mimetic enzyme

RSC Advances ◽

10.1039/d0ra02105a ◽

2020 ◽

Vol 10 (25) ◽

pp. 14953-14957 ◽

Cited By ~ 1

Author(s):

Xin Shu ◽

Yuwai Chang ◽

Huizhong Wen ◽

Xiaotiao Yao ◽

Yilin Wang

Keyword(s):

Quantum Dots ◽

Ascorbic Acid ◽

Carbon Quantum Dots ◽

Absorption Peak ◽

Strong Absorption ◽

Colorimetric Determination ◽

Mimetic Enzyme ◽

Peroxidase Mimetic ◽

Strong Absorption Peak

Carbon quantum dots (CQDs) were synthesized from litchi peel, exhibiting a peroxidase-like activity and enabling the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in association with H2O2 to generate blue oxidized TMB (ox-TMB) with a strong absorption peak at 652 nm.

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Microfluidic paper-based device for colorimetric determination of glucose based on a metal-organic framework acting as peroxidase mimetic

Microchimica Acta ◽

10.1007/s00604-017-2575-7 ◽

2017 ◽

Vol 185 (1) ◽

Cited By ~ 29

Author(s):

Inmaculada Ortiz-Gómez ◽

Alfonso Salinas-Castillo ◽

Amalia García García ◽

José Antonio Álvarez-Bermejo ◽

Ignacio de Orbe-Payá ◽

...

Keyword(s):

Metal Organic Framework ◽

Colorimetric Determination ◽

Peroxidase Mimetic ◽

Metal Organic ◽

Organic Framework

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A Method for the Colorimetric Determination of β-Glucuronidase in Urine, Serum, Tissue; Assay of Enzymatic Activity in Health and Disease

Gastroenterology ◽

10.1016/s0016-5085(59)80003-2 ◽

1959 ◽

Vol 36 (2) ◽

pp. 193-201 ◽

Cited By ~ 46

Author(s):

Julius A. Goldbarg ◽

Esteban P. Pineda ◽

Benjamin M. Banks ◽

Alexander M. Rutenburg

Keyword(s):

Enzymatic Activity ◽

Colorimetric Determination ◽

Health And Disease ◽

Urine Serum

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Colorimetric Determination of Fluoride in Drinking Groundwater using a Polymeric Zirconium Complex of 5-(2-Carboxyphenylazo)-8-Hydroxyquinoline

JOURNAL OF ADVANCES IN CHEMISTRY ◽

10.24297/jac.v12i7.6703 ◽

2013 ◽

Vol 12 (7) ◽

pp. 460-465

Author(s):

Sameer Amereih ◽

Zaher Barghouthi ◽

Lamees Majjiad

Keyword(s):

Drinking Water ◽

Detection Limit ◽

Complex Formation ◽

Molar Absorptivity ◽

Colorimetric Determination ◽

Zirconium Complex ◽

Reliable Determination ◽

Percentage Recovery ◽

Quantitation Limit

A sensitive colorimetric determination of fluoride in drinking water has been developed using a polymeric zirconium complex of 5-(2-Carboxyphenylazo)-8-Hydroxyquinoline as fluoride reagents. The method allowed a reliable determination of fluoride in range of (0.0-1.5) mg L-1. The molar absorptivity of the complex formation is 7695 ± 27 L mol-1 cm-1 at 460 nm. The sensitivity, detection limit, quantitation limit, and percentage recovery for 1.0 mg L-1 fluoride for the proposed method were found to be 0.353 ± 0.013 μg mL-1, 0.1 mg L-1, 0.3 mg L-1, and 101.7 ± 4.1, respectively.

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