scholarly journals MoS2 nanosheet mediated ZnO–g-C3N4 nanocomposite as a peroxidase mimic: catalytic activity and application in the colorimetric determination of Hg(ii)

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4268-4276 ◽  
Author(s):  
A. Anand Babu Christus ◽  
P. Panneerselvam ◽  
A. Ravikumar ◽  
M. Marieeswaran ◽  
S. Sivanesan
Keyword(s):  
Catalytic Activity ◽  
Metal Ions ◽  
Colorimetric Determination ◽  
Colorimetric Sensing ◽  
Peroxidase Mimic ◽  
Sensing Platform ◽  
Mos2 Nanosheet

A novel colorimetric sensing platform using the peroxidase mimicking activity of ternary MoS2-loaded ZnO–g-C3N4 nanocomposites (ZnO–g-C3N4/MoS2) has been developed for the determination of Hg(ii) ions over co-existing metal ions.

Atomic layer deposition-assisted growth of CuAl LDH on carbon fiber as a peroxidase mimic for colorimetric determination of H2O2 and glucose

2019 ◽  
Vol 43 (15) ◽  
pp. 5826-5832 ◽  
Author(s):  
Lihong Wu ◽  
Gengping Wan ◽  
Shaohua Shi ◽  
Zhengyi He ◽  
Xuefei Xu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Carbon Fiber ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Growth Strategy ◽  
Colorimetric Determination ◽  
Peroxidase Mimic ◽  
Layer Deposition

An atomic-layer-deposited Al2O3-induced LDH growth strategy was proposed to prepare carbon fiber-supported ultrathin CuAl LDH nanosheets (CF@CuAl-LDH). The CF@CuAl-LDH exhibited superior peroxidase-like catalytic activity.

Colorimetric Determination of Metal Ions Using Smartphone

2018 ◽  
Vol 769 ◽  
pp. 235-241
Author(s):  
Eldar V. Urazov ◽  
Maria A. Gavrilenko ◽  
Mikhail K. Belikov
Keyword(s):  
Metal Ions ◽  
Color Change ◽  
Solid Phase ◽  
Colorimetric Determination ◽  
Phase Extraction ◽  
Colorimetric Analysis ◽  
Digital Photo ◽  
Visual Color ◽  
Polymethacrylate Matrix

The visible sensing determination with color change after solid phase extraction using polymethacrylate matrix and colorimetric smartphone-based technique have been highlighted. The smartphone-based method based on digital photo of transparent polymer optode for metal ions determination is proposed for diapason 0.02-60 mg/L. The optical property of polymer matrix enables a visual color change during its reaction with the analytes. Proposed method is compared with spectrophotometric and colorimetric analysis.

Etched PtCu nanowires as a peroxidase mimic for colorimetric determination of hydrogen peroxide

2019 ◽  
Vol 186 (3) ◽  
Author(s):  
Ning Sui ◽  
Shuai Li ◽  
Yukai Wang ◽  
Qingbo Zhang ◽  
Shufeng Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Colorimetric Determination ◽  
Peroxidase Mimic

A novel bromelain-MnO2 biosensor for colorimetric determination of dopamine

2021 ◽  
Vol 45 (1) ◽  
pp. 92-97
Author(s):  
Shimeng Liu ◽  
Xiayu Zhou ◽  
Changyin Lv ◽  
Ran Liu ◽  
Shiya Li ◽  
...  
Keyword(s):  
Oxidase Activity ◽  
New Method ◽  
Colorimetric Determination ◽  
Colorimetric Sensing

We report a method for determining dopamine in serum via colorimetric sensing. This new method adopts bromelain-templated MnO2 nanosheets that possess high oxidase activity. 3,3′,5,5′-Tetramethylbenzidine (TMB) can be directly oxidized by bromelain-MnO2 nanosheets to oxTMB products.

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