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Your search keyword '"Daiping He"' showing total 3 results
Start Over Author "Daiping He" Journal chemical communications (cambridge, england)
3 results on '"Daiping He"'

1. Porous manganese-cobalt oxide microspheres with tunable oxidase mimicking activity for sulfide ion colorimetric detection

Author

Daiping He, Ping Jiang, Xue Wang, and Shiya Feng

Subjects
Surface Properties, chemistry.chemical_element, Manganese, Sulfides, Catalysis, Microsphere, SULFIDE ION, Materials Chemistry, Particle Size, Porosity, Cobalt oxide, Detection limit, Ions, Oxidase test, Metals and Alloys, Oxides, General Chemistry, Cobalt, Microspheres, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Ceramics and Composites, Colorimetry, Oxidoreductases, Nuclear chemistry
Abstract

Here, we report the controllable synthesis of porous MnxCo1−xO microspheres and tunable catalytic activity in the oxidase mimicking reaction. Mn0.6Co0.4O possesses the best oxidase mimicking activity and can be used successfully in sulfide ion colorimetric detection with a low detection limit of 0.1 μM.

Published
2020

2. Uniformly distributed ruthenium nanocrystals as highly efficient peroxidase for hydrogen peroxide colorimetric detection and nitroreductase for 4-nitroaniline reduction

Author

Mingzhu Wang, Daiping He, Ping Jiang, Xue Wang, Shiya Feng, Yuyun Chen, and Mei Ming

Subjects
Detection limit, biology, Metals and Alloys, chemistry.chemical_element, Nanoparticle, General Chemistry, 4-Nitroaniline, Photochemistry, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Ruthenium, Nitroreductase, chemistry.chemical_compound, chemistry, Materials Chemistry, Ceramics and Composites, biology.protein, Hydrogen peroxide, Peroxidase
Abstract

Here, we report highly dispersed small ruthenium nanoparticles (NPs) anchored onto a porous carbon (Ru/PC) with a clean catalytic surface and explore their excellent peroxidase-like activity for 3,3′,5,5′-tetramethylbenzidine oxidation mediated by H2O2, which allows sensitive colorimetric detection of H2O2 with a low detection limit of 3.8 μM. Moreover, it is also found that the Ru/PC has a high nitroreductase-like activity for 4-nitroaniline reduction triggered by NaBH4.

Published
2020

3. Ultrafine and monodispersed iridium nanoparticles supported on nitrogen-functionalized carbon: an efficient oxidase mimic for glutathione colorimetric detection

Author

M. Huang, Yun Zhang, Hua Wang, Daiping He, and Ping Jiang

Subjects
Oxidase test, 010405 organic chemistry, Metals and Alloys, Nanoparticle, chemistry.chemical_element, General Chemistry, Glutathione, 010402 general chemistry, 01 natural sciences, Nitrogen, Catalysis, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry.chemical_compound, chemistry, Materials Chemistry, Ceramics and Composites, Iridium, Inhibitory effect, Carbon, Nuclear chemistry
Abstract

Ultrafine and monodispersed iridium nanoparticles supported on nitrogen-functionalized carbon materials (Ir/NC) were prepared and served as an efficient oxidase mimic for 3',5,5'-tetramethylbenzidine (TMB) oxidation. Due to the inhibition effect of glutathione (GSH) on TMB oxidation, a sensitive colorimetric GSH detection approach was proposed.

Published
2019

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