A facile route for constructing Cu–N–C peroxidase mimics

Lin, Zhen; Zheng, Linlin; Yao, Wensong; Liu, Shijun; Bu, Yemei; Qing, Zeng; Zhang, Xiaomin; Deng, Hao‐Hua; Lin, Xinhua; Chen, Wei

doi:10.1039/d0tb01494j

Cited by 43 publications

(28 citation statements)

References 36 publications

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“…Generally, the catalytic mechanism of peroxidase is to catalyze H 2 O 2 to generate ROS, such as · OH (hydroxyl radical), O 2 · – , and 1 O 2 , and then the produced ROS oxidize the corresponding substrates . According to previous reports, the species of ROS can be identified by the corresponding radical probes or scavengers. − In this work, IPA, p-BQ, and NaN 3 were employed as scavengers of · OH, O 2 · – , and 1 O 2 to clarify the species of ROS in the Fe/C NS/TMB/H 2 O 2 solution.…”

Section: Resultsmentioning

confidence: 90%

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Nanozyme-Based Detection of Alkaline Phosphatase

Zhou

Wang

2021

ACS Appl. Nano Mater.

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Herein, a colorimetric detection strategy for alkaline phosphatase (ALP) activity was established based on an Fe-doped carbon-based nanozyme. By doping Fe into a Zn MOF and introducing dicyandiamide for pyrolysis, we obtained a twodimensional carbon nanosheet with exceptional peroxidasemimicking activity (Fe/C NS). The Fe/C NS has superior affinity to H 2 O 2 , can decompose H 2 O 2 into reactive oxygen species, and further oxidize reducing substances such as phenol. ALP can hydrolyze disodium phenyl phosphate into phenol, while the Fe/C NS can promote the reaction between phenol and 4-aminoantipyrine in the presence of H 2 O 2 to produce red quinone imine. Based on the changes of absorbance of the reaction system, ALP activity can be detected in a range of 0.05−6.00 U•L −1 with a detection limit of 0.03 U•L −1 . Furthermore, we developed a quantitative relationship between ALP activity and color characteristic values by recording the RGB (red, green, and blue) values of color changes under different ALP concentrations, realizing the convenient determination of ALP activity without specific analytical equipment. This work can effectively broaden the application of nanozymes in biological analysis.

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Section: Resultsmentioning

confidence: 90%

“…•− , and 1 O 2 , and then the produced ROS oxidize the corresponding substrates. 46 According to previous reports, the species of ROS can be identified by the corresponding radical probes or scavengers. 47−49 In this work, IPA, p-BQ, and NaN 3 were employed as scavengers of • OH, O 2…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Nanozyme-Based Detection of Alkaline Phosphatase

Zhou

Wang

2021

ACS Appl. Nano Mater.

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“…[57] The Na via a flash-combustion strategy. [58] Benefiting from the layered carbon modification, the composite reduces the moisture sensitivity and improves the electrochemical reversibility (Figure 9b). The coral-like composite can deliver 107 and 88 mA h g -1 at 0.05 C and 2 C respectively.…”

Section: Development Of Electrochemical Performancementioning

confidence: 99%

Section: Development Of Electrochemical Performancementioning

confidence: 99%

Iron‐Phosphate‐Based Cathode Materials for Cost‐Effective Sodium‐Ion Batteries: Development, Challenges, and Prospects

Liang

et al. 2022

Adv Materials Inter

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development, it is urgent to rummage and exploit renewable energy for instance solar energy, wind energy, nuclear energy, and tidal energy, etc. Large-scale energy storage systems (ESSs) are necessary and critical to integrate the above-mentioned intermittent energy into a continuous energy system, among which the electrochemical energy storage device is the most convenient, stable, and effective way for grid-connected forthputting. [2] Lithiumion batteries have been commercialized in the fields of electric vehicles, portable electronic devices, and electric tools, etc. since the 1990s. [3] Notably, lithium iron phosphate (LiFePO 4 ), one of the most important cathode materials for LIBs, is a potential candidate for large-scale energy storage due to its long lifespan, low toxicity, and outstanding thermal stability.

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“…SAC such as Fe-and Cu-N-C were also reported to exhibit enzyme-like activity ("SA nanozymes") in e.g. (per)oxidase-catalyzed reactions [261,262].…”

Section: Other Reactionsmentioning

confidence: 99%

Supported Metal Single‐Atom Thermocatalysts for Oxidation Reactions

Piccolo

Loridant

Christopher

2022

Supported Metal Single Atom Catalysis

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The interest in single-metal-atom dispersion in heterogeneous catalysis has existed since the 1950s with spectroscopic investigations of rhodium "single-site" catalysts supported on alumina, and more recently with oxometallate monomers for selective oxidation reactions. A decade ago, advances in electron microscopy intensified the interest of the catalysis community in controlling the dispersion of supported metals down to the single-atom active site level and revealing their intrinsic catalytic properties. Pioneering works in the ever-growing field of single-atom catalysis investigated late transition metals (group 8 to 11) supported on transition metal oxides for the CO oxidation and water-gas shift reactions. Since then, various single-atom catalysts, most often supported on oxides, have been evaluated in a broad panel of thermal oxidation reactions, and have often shown remarkable performances. Besides CO oxidation over oxidesupported noble metals, which represents the major part of the literature, this chapter reviews the main classes of oxidation reactions, including total and selective oxidations of hydrocarbons and oxygenates, on 2 oxide-or carbon-supported catalysts. Throughout the chapter, we emphasize several aspects that we consider important, such as the coordination environment and stability of single metal atoms, as well as their compared performance with supported nanoparticles. Figure 3. a) Aberration-corrected STEM image of Pt atoms (identified by yellow circles) on ca. 5 nm diameter anatase TiO2 particles. Adapted with permission from [72], Copyright 2017 ACS. b) CO probemolecule FTIR spectra of a Pt/TiO2 SAC as a function of temperature during a TPD measurement. c) DFT-calculated structure of CO bound to PtO2 adsorbed at a TiO2(145) step edge. b and c adapted with permission from [73], Copyright 2018 Elsevier. d) Schematic showing the structural transformation of isolated Pt species as a function of environmental conditions. Adapted with permission from [74],Copyright 2019 Springer Nature. e) DFT-calculated reaction pathway for CO oxidation on a Pd/TiO2 SAC that was supported by spectroscopic and kinetic analyses. Adapted with permission from [75],

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A facile route for constructing Cu–N–C peroxidase mimics

Abstract: Nanozymes have emerged as enzyme-mimiking nanomaterials to overcome the low stability and high cost of some natural enzymes. The design and fabrication of nanozymes with superior performance than natural enzymes...

Cited by 43 publications

References 36 publications

Nanozyme-Based Detection of Alkaline Phosphatase

Nanozyme-Based Detection of Alkaline Phosphatase

Iron‐Phosphate‐Based Cathode Materials for Cost‐Effective Sodium‐Ion Batteries: Development, Challenges, and Prospects

Supported Metal Single‐Atom Thermocatalysts for Oxidation Reactions

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