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Nickel metal-organic framework 2D nanosheets with enhanced peroxidase nanozyme activity for colorimetric detection of H2O2
Abstract
A two-dimensional (2D) Ni based metal-organic framework (MOF) nanosheets were synthesized using a one-step solvent-thermal method. The as-prepared nanosheets were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder X-ray diffraction (XRD) and energy disperse spectroscopy (EDS) mapping. Ni-MOF nanosheet was first time found to used as a peroxidase mimetic with catalytic activities and could catalyze the oxidation of the substrate 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). Catalytic mechanism analysis suggested the enzymatic kinetics of Ni-MOF nanosheets followed typical Michaelis-Menten theory and Ni-MOF nanosheets possess a higher affinity for two substrates (TMB and H2O2) than horseradish peroxidase (HRP). Furthermore, Ni-MOF nanosheet was applied to establish an H2O2 colorimetric sensor which deserves a wide linear range of 0.04 ~ 160 μM and a low detection limit of 8 nM. Also the application of this sensor for H2O2 detection in human serum and disinfectant was demonstrated and satisfactory results were obtained. Thus, the simple and sensitive Ni-MOF/TMB/H2O2 colorimetric system has great promising applications in clinical medicine and food environment analysis.
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Intrinsic peroxidase-like activity of ferromagnetic nanoparticles
Gao, L., Zhuang, J., Nie, L., Zhang, J., Zhang, Y., Gu, N., Wang, T., Feng, J., Yang, D., Perrett, S., et al. (2007) · Nature Nanotechnology · doi:10.1038/nnano.2007.260 · Cited by 7,483
The Role of Oxidative Stress in Diabetic Vascular and Neural Disease
Yorek, M. A. (2003) · Free Radical Research · doi:10.1080/1071576031000083161 · Cited by 219
Cited by
Metal–organic framework based nanozymes: promising materials for biochemical analysis
Niu, X., Li, X., Lyu, Z., Pan, J., Ding, S., Ruan, X., Zhu, W., Du, D., & Lin, Y. (2020) · Chemical Communications · doi:10.1039/d0cc04890a · Cited by 328
Metadata
- Authors
- Chen, J., Shu, Y., Li, H., Xu, Q., & Hu, X.
- Venue
- Talanta
- Publisher
- Elsevier BV
- Published
- 2018-11
- Volume
- 189
- Pages
- 254-261
- ISSN
- 0039-9140 (ISSN-L)
- OpenAlex
- W2811141887
- Cited by
- 201
- References
- 2
- FWCI
- 7.50
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, J., Shu, Y., Li, H., Xu, Q., & Hu, X. (2018). Nickel metal-organic framework 2D nanosheets with enhanced peroxidase nanozyme activity for colorimetric detection of H2O2. Talanta. https://doi.org/10.1016/j.talanta.2018.06.075
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