Nickel doping of ferrous disulfide nanocubes exhibits enhanced oxidase-like activity for In vitro detection of total antioxidant capacity

yang, Lin; Cao, Qianqian; Tan, Ting; Chen, Lijing; Deng, Yuqian; Liu, Aizhe; Duan, Minghui; Li, Ranhui; Wang, Weiguo

doi:10.1016/j.bios.2024.116002

Biosensors and Bioelectronics

2024

DOI: 10.1016/j.bios.2024.116002

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Nickel doping of ferrous disulfide nanocubes exhibits enhanced oxidase-like activity for In vitro detection of total antioxidant capacity

Lin yang,

Qianqian Cao,

Ting Tan

et al.

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Cited by 3 publications

References 40 publications

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Peroxidase-like CuS nanozyme-based sensor array for the quantification and discrimination of ascorbic acid

Ye,

Wang,

Jiang

et al. 2024

J Nanopart Res

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Peroxidase-like CuS nanozyme-based sensor array for the quantification and discrimination of ascorbic acid

Ye,

Wang,

Jiang

et al. 2024

J Nanopart Res

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Nickel-doped cuprous oxide nanocauliflowers with specific peroxidase-like activity for sensitive detection of hydrogen peroxide and uric acid

Cheng,

Xiao,

Tang

et al. 2025

Colloids and Surfaces B: Biointerfaces

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Partial Oxidation Boosts Ru Nanoparticles with Excellent Oxidase-Mimicking Activity for Melatonin Colorimetric Detection

Xiao,

Wang,

You

et al. 2024

Crystal Growth & Design

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It is highly desirable but still remains challenging to tune nanozymes with superior catalytic activity via simple operation. Herein, the oxidase-like activity of Ru nanoparticles supported on porous carbon (Ru/PC) was significantly modulated via a facile partial oxidation process. Due to the small size, uniform dispersion, high electron density on the surface, as well as abundant interfacial heterostructure between Ru and RuO 2 , the partially oxidized Ru/PC (P−Ru/PC) showed excellent oxidase-mimicking activity in triggering 3,3′,5,5′-tetramethylbenzidine (TMB) oxidation, with a low K m of 0.138 mM and a high V max of 2.82 × 10 −7 M• s −1 . Theoretical calculations reveal that both the absorption and subsequent activation of molecular oxygen are more favorable on the interfacial heterostructure of P−Ru/PC than on the Ru/PC surface. Moreover, the oxidase-like activity of P−Ru/PC was found to be suppressed by melatonin, along with a fading color of oxidized TMB (TMB ox ). As a result, a novel colorimetric system consisting of P−Ru/PC and TMB was established for melatonin detection for the first time, which shows a wide linear range of 10−220 μM and a low detection limit of 0.023 μM. This work not only provides a simple but smart strategy of interface engineering to tune the oxidase-like activity of Ru/PC, but also expands the application of Ru oxidase mimics in pharmaceutical analysis.

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Nickel doping of ferrous disulfide nanocubes exhibits enhanced oxidase-like activity for In vitro detection of total antioxidant capacity

Cited by 3 publications

References 40 publications

Peroxidase-like CuS nanozyme-based sensor array for the quantification and discrimination of ascorbic acid

Peroxidase-like CuS nanozyme-based sensor array for the quantification and discrimination of ascorbic acid

Nickel-doped cuprous oxide nanocauliflowers with specific peroxidase-like activity for sensitive detection of hydrogen peroxide and uric acid

Partial Oxidation Boosts Ru Nanoparticles with Excellent Oxidase-Mimicking Activity for Melatonin Colorimetric Detection

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