Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation

Environmental Science Nano, Journal Year: 2024, Volume and Issue: 11(3), P. 766 - 796

Published: Jan. 1, 2024

Here we made a critical review on nanozyme-involved detection and degradation of environmental pollutants, the research progress achieved in last five years was emphatically concluded.

Language: Английский

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Recent advances in multi‐metallic‐based nanozymes for enhanced catalytic cancer therapy

BMEMat, Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 19, 2023

Abstract Nanozymes have emerged as a promising alternative to natural enzymes, effectively addressing enzymes' inherent limitation. Versatility and potential applications of nanozyme span across various fields, with catalytic tumor therapy being one prominent area. This has sparked significant interest exploration in the utilization nanozymes for targeted cancer treatment. Recent advancements interdisciplinary research, nanotechnology, biotechnology, technology led emergence multi‐metallic‐based nanozymes, which exhibit tremendous further development. review focuses on investigating synergistic effects aiming enhance our understanding their activities facilitate broader applications. We comprehensively survey remarkable achievements synthesis, mechanisms, latest therapy. Furthermore, we identify current limitations prospects development new materials application novel technologies, along challenges associated underscores significance emphasizes need continued well impact realization breakthroughs

Language: Английский

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Multifunctional Manganese–Nucleotide Laccase-Mimicking Nanozyme for Degradation of Organic Pollutants and Visual Assay of Epinephrine via Smartphone

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(11), P. 4736 - 4744

Published: March 11, 2024

As a natural green catalyst, laccase has extensive application in the fields of environmental monitoring and pollutant degradation. However, susceptibility to influences poor reusability seriously hinder its application. To address these concerns, for first time, manganese ion replaced copper as active center coordinate with guanosine monophosphate (GMP) synthesizing mimic high catalytic activity. Compared laccase, laccase-like nanozyme (Mn–GMPNS) demonstrated superior thermal stability, acid–base resistance, salt tolerance, reusability, substrate universality. Benefiting from activity Mn–GMPNS, epinephrine, significant neurotransmitter hormone associated numerous diseases, was visually detected within 10 min portable assay by smartphone. More encouragingly, Mn–GMPNS can efficiently degrade dye pollutants, achieving decolorization rate over 70% 30 min. Thus, coordination between nucleotide potential rational design nanozymes activity, low cost, good biocompatibility.

Language: Английский

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Advances in design and preparation of nanozymes and their applications for constructing higher sensitive lateral flow assays

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 510, P. 215797 - 215797

Published: April 4, 2024

Language: Английский

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Metal covalent organic frameworks-based laccase-like nanozyme for oxidative degradation and identification of phenolic pollutants

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137142 - 137142

Published: Jan. 7, 2025

Language: Английский

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Excellent Laccase Mimic Activity of Cu-Melamine and Its Applications in the Degradation of Congo Red

Applied Biochemistry and Biotechnology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Porous, Oxygen Vacancy Enhanced CeO_2–x Microspheres with Efficient Enzyme-Mimetic and Photothermal Properties

ACS Sustainable Chemistry & Engineering, Journal Year: 2022, Volume and Issue: 10(29), P. 9492 - 9505

Published: June 15, 2022

Porous, defective, gray cerium oxide (g-CeO2–x) microspheres 4.8 μm in size were synthesized as a multifunctional nanozyme with catalase-, peroxidase-, and oxidase-like activities by the reduction of monodisperse-porous (CeO2) microspheres. Higher Ce(III) atomic fraction, more oxygen vacancy, lower content on surface g-CeO2–x shown Raman X-ray photoelectron spectroscopy. Band gap energies plain CeO2 determined 3.0 2.4 eV, respectively. Reactive species (ROS) related to enzyme-mimetic activity singlet (1O2•) superoxide anion (•O2–) ESR Michaelis–Menten plots sketched for provided superior maximum substrate consumption rates Oxidase- peroxidase-like used developing colorimetric fluorometric protocols detection nitrite common pollutant, also exhibited photothermal response explained enhanced light adsorption originated from vacancies. A temperature elevation up 19 °C was obtained under near infrared laser irradiation at 808 nm. Photothermal accompanying makes porous promising synergistic therapy agent capable overcoming hypoxia generating additional ROS tumor microenvironment.

Language: Английский

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Laccase-mimicking Mn–Cu hybrid nanoflowers for paper-based visual detection of phenolic neurotransmitters and rapid degradation of dyes

Journal of Nanobiotechnology, Journal Year: 2022, Volume and Issue: 20(1)

Published: Aug. 2, 2022

Laccase-based biosensors are efficient for detecting phenolic compounds. However, the instability and high cost of laccases have hindered their practical utilization.In this study, we developed hierarchical manganese dioxide-copper phosphate hybrid nanoflowers (H-Mn-Cu NFs) as excellent laccase-mimicking nanozymes. To synthesize H-Mn-Cu NFs, dioxide (MnO2 were first synthesized by rapidly reducing potassium permanganate using citric acid. The MnO2 NFs then functionalized with amine groups, followed incubation copper sulfate three days at room temperature to drive coordination interaction between moieties ions induce anisotropic growth petals composed crystals, consequently yielding NFs. Compared those free laccase, same mass concentration, exhibited lower Km (~ 85%) considerably higher Vmax 400%), well significantly enhanced stability in ranges pH, temperature, ionic strength, periods evaluated. also catalyzed decolorization diverse dyes faster than laccase. Based on these advantageous features, a paper microfluidic device incorporating was constructed convenient visual detection neurotransmitters, including dopamine epinephrine. enabled rapid sensitive quantification target neurotransmitters an image acquired smartphone.These results clearly show that could be potential candidates replace natural wide range applications biosensing, environmental protection, biotechnology.

Language: Английский

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Ultrasound and defect engineering-enhanced nanozyme with high laccase-like activity for oxidation and detection of phenolic compounds and adrenaline

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133126 - 133126

Published: Dec. 5, 2023

Language: Английский

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Ultrasensitive detection of circulating tumor cells via DNA walker driven by a DNA circuit synergized with MOF-on-MOF nanozyme

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 479, P. 147513 - 147513

Published: Nov. 19, 2023

Language: Английский

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