Construction of a bioinspired laccase-mimicking nanozyme for the degradation and detection of phenolic pollutants

Wang, Jinghui; Huang, Renliang; Qi, Wei; Su, Rongxin; Binks, Bernard P.; He, Zhimin

doi:10.1016/j.apcatb.2019.05.012

Cited by 236 publications

(143 citation statements)

References 60 publications

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“…Inspired by these Cu‐containing oxidases, Cu complexes have been synthesized and tested for organic oxidation. Several of these complexes such as (µ‐η 2 :η 2 ‐peroxo)dicopper(II) complexes for phenol oxidation, [ 10 ] (µ‐peroxo)dicopper(II) species for catechol oxidation, [ 11 ] CH‐Cu nanozyme for chlorophenol and bisphenol oxidation, [ 12 ] [Cu 5 (OH) 4 (OH 2 ) 2 (SiW 9 O 33 ) 2 ] 10− for water oxidation, [ 13 ] and even single‐atom Cu/TiO 2 for water oxidation [ 14 ] possess high catalytic activity. These reports confirm that copper containing sites play key roles in oxidation reactions.…”

Section: Figurementioning

confidence: 99%

Bioinspired Copper Single‐Atom Catalysts for Tumor Parallel Catalytic Therapy

et al. 2020

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The oxidation of intracellular biomolecules by reactive oxygen species (ROS) forms the basis for ROS‐based tumor therapy. However, the current therapeutic modalities cannot catalyze H2O2 and O2 concurrently for ROS generation, thereby leading to unsatisfactory therapeutic efficacy. Herein, it is reported a bioinspired hollow N‐doped carbon sphere doped with a single‐atom copper species (Cu‐HNCS) that can directly catalyze the decomposition of both oxygen and hydrogen peroxide to ROS, namely superoxide ion (O2•−) and the hydroxyl radical (•OH), respectively, in an acidic tumor microenvironment for the oxidation of intracellular biomolecules without external energy input, thus resulting in an enhanced tumor growth inhibitory effect. Notably, the Fenton reaction turnover frequency of Cu species in Cu‐HNCS is ≈5000 times higher than that of Fe in commercial Fe3O4 nanoparticles. Experimental results and density functional theory calculations reveal that the high catalytic activity of Cu‐HNCS originates from the single‐atom copper, and the calculation predicts a next‐generation Fenton catalyst. This work provides an effective paradigm of tumor parallel catalytic therapy for considerably enhanced therapeutic efficacy.

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Section: Figurementioning

confidence: 99%

Bioinspired Copper Single‐Atom Catalysts for Tumor Parallel Catalytic Therapy

et al. 2020

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“…Wang and coauthors [265] presented a new class of laccase-like NZs (denoted as CH-Cu). The electron transfer in this system was providedvia the coordination of Cu + /Cu 2+ with a cysteine (Cys)histidine (His) dipeptide.…”

Section: Laccase-mimicking Nanozymesmentioning

confidence: 99%

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

Stasyuk

Smutok

Demkiv

et al. 2020

Sensors

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The current review is devoted to nanozymes, i.e., nanostructured artificial enzymes which mimic the catalytic properties of natural enzymes. Use of the term “nanozyme” in the literature as indicating an enzyme is not always justified. For example, it is used inappropriately for nanomaterials bound with electrodes that possess catalytic activity only when applying an electric potential. If the enzyme-like activity of such a material is not proven in solution (without applying the potential), such a catalyst should be named an “electronanocatalyst”, not a nanozyme. This paper presents a review of the classification of the nanozymes, their advantages vs. natural enzymes, and potential practical applications. Special attention is paid to nanozyme synthesis methods (hydrothermal and solvothermal, chemical reduction, sol-gel method, co-precipitation, polymerization/polycondensation, electrochemical deposition). The catalytic performance of nanozymes is characterized, a critical point of view on catalytic parameters of nanozymes described in scientific papers is presented and typical mistakes are analyzed. The central part of the review relates to characterization of nanozymes which mimic natural enzymes with analytical importance (“nanoperoxidase”, “nanooxidases”, “nanolaccase”) and their use in the construction of electro-chemical (bio)sensors (“nanosensors”).

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“…Similar studies was also performed by other scientists and it was found that Cu/H 3 BTC MOF is more robust to oxidize diverse range of substrates at higher catalytic rate. 71,72 These phenols are signicant industrial chemicals and might induce environmental issues. Be able to efficiently oxidize them is strongly recommended.…”

Section: Catalytic Detection Of Phenolic Pollutants By Cu/h 3 Btc Mofmentioning

confidence: 99%

Facile synthesis of laccase mimic Cu/H₃BTC MOF for efficient dye degradation and detection of phenolic pollutants

et al. 2019

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Construction of a bioinspired laccase-mimicking nanozyme for the degradation and detection of phenolic pollutants

Cited by 236 publications

References 60 publications

Bioinspired Copper Single‐Atom Catalysts for Tumor Parallel Catalytic Therapy

Bioinspired Copper Single‐Atom Catalysts for Tumor Parallel Catalytic Therapy

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

Facile synthesis of laccase mimic Cu/H₃BTC MOF for efficient dye degradation and detection of phenolic pollutants

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Construction of a bioinspired laccase-mimicking nanozyme for the degradation and detection of phenolic pollutants

Cited by 236 publications

References 60 publications

Bioinspired Copper Single‐Atom Catalysts for Tumor Parallel Catalytic Therapy

Bioinspired Copper Single‐Atom Catalysts for Tumor Parallel Catalytic Therapy

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

Facile synthesis of laccase mimic Cu/H3BTC MOF for efficient dye degradation and detection of phenolic pollutants

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Facile synthesis of laccase mimic Cu/H₃BTC MOF for efficient dye degradation and detection of phenolic pollutants