Biomimetic Electrochemical Sensor Based on Single-Atom Nickel Laccase Nanoenzyme for Quercetin Detection

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(6), P. 2610 - 2619

Published: Feb. 2, 2024

Laccase, a member of the copper oxidase family, has been used as green catalyst in environmental and biochemical industries. However, laccase nanoenzymes are limited to materials with active site, noncopper have scarcely reported. In this study, inspired by multiple sites natural redox Cu2+/Cu+ electron transfer pathway, novel nitrogen/nickel single-atom nanoenzyme (N/Ni SAE) high laccase-like activity was prepared inducing Ni dopamine precipitation through controllable water/ethanol interface reaction. Compared that laccase, simulated N/Ni SAE exhibited excellent stability reusability. The higher efficiency toward degradation 2,4-dichlorophenol, hydroquinone, bisphenol A, p-aminobenzene. addition, sensitive electrochemical biosensor constructed leveraging SAE; sensor offered unique advantages terms catalytic activity, selectivity, stability, repeatability. Its detection ranges for quercetin were 0.01–0.1 1.0–100 μM, limit 3.4 nM. It also successfully quantitative fruit juices. Therefore, biomimetic study promote development new strategy various bioactive molecules show great potential practical applications.

Language: Английский

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Material system and tribological mechanism of plasma sprayed wear resistant coatings: Overview

Surface and Coatings Technology, Journal Year: 2024, Volume and Issue: 483, P. 130758 - 130758

Published: April 10, 2024

Language: Английский

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An origami microfluidic paper device based on core-shell Cu@Cu2S@N-doped carbon hollow nanocubes

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1316, P. 342828 - 342828

Published: June 12, 2024

Language: Английский

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Photothermal therapy of copper incorporated nanomaterials for biomedicine

Biomaterials Research, Journal Year: 2023, Volume and Issue: 27(1)

Published: Feb. 9, 2023

Studies have reported on the significance of copper incorporated nanomaterials (CINMs) in cancer theranostics and tissue regeneration. Given their unique physicochemical properties tunable nanostructures, CINMs are used photothermal therapy (PTT) photothermal-derived combination therapies. They potential to overcome challenges unsatisfactory efficacy conventional therapies an efficient non-invasive manner. This review summarizes recent advances CINMs-based PTT biomedicine. First, classification structure introduced. tumors guided by multiple imaging modalities then reviewed. Various representative designs bone, skin other organs presented. Furthermore, biosafety is discussed. Finally, this analysis delves into current that researchers face offers optimistic outlook prospects clinical translational research field. aims at elucidating applications derived biomedicine encourage future design translation.

Language: Английский

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Dual-mode sensors based on double enzyme-mimicking MnCu nanoflowers as fluorescence probe for the detection of organophosphorus pesticides and 2,4-dichlorophenol

Colloids and Surfaces B Biointerfaces, Journal Year: 2025, Volume and Issue: 251, P. 114608 - 114608

Published: March 12, 2025

Language: Английский

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The novel nanozyme-based electrochemical-driven electrochromic visual biosensor based on PEDOT:PSS/RGO conductive film for rapid detection of nitrite in food samples

Food Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 143971 - 143971

Published: March 1, 2025

Language: Английский

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An Origami Microfluidic Paper Device Based on Core-Shell Cu@Cu2s@N-Doped Carbon Hollow Nanocubes

Published: Jan. 1, 2024

Tuning the morphology and intricate composition of transition metals is a viable strategy to harness their structure/function correlation, leading ideal electrocatalytic performance synthesized catalysts. Herein, sensitive rapid Cu encapsulated Cu2S@nitrogen-doped carbon (Cu@Cu2S@N-C) hollow nanocubes-functionalized microfluidic paper-based analytical device (μ-PAD) was fabricated. Through facile multi-step template carbonization technique, inter-connected networks were formed boost active sites, shell coated protect from being oxidation. By rationally designing double-shell nanostructure introducing Cu-encapsulated inner layer, Cu@Cu2S@N-C nanocubes show large specific surface area, short diffusion channels, high stability. For application, constructed μ-PAD used for glucose sensing utilizing an origami automated sample pretreatment system enabled by simple application strong alkaline solution on wax paper. Under optimal circumstances, electrochemical biosensor exhibits broad detection range 2–7500 μM (R2 = 0.996) with low limit 0.16 (S/N 3). practical proposed has been successfully applied serum samples without any additional preparation steps determination, offering new perspective early nonenzymatic diagnosis

Language: Английский

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Cu(II)-chelated ovalbumin mimicking the active centre of superoxide dismutase: Structure, antioxidant and antibacterial properties for food preservation application

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 277, P. 134090 - 134090

Published: July 23, 2024

Language: Английский

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Innovative cyclic voltammetric analysis of copper(II)-ligand interactions: Urea and saccharin complexes for enhanced redox control

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1325, P. 140893 - 140893

Published: Dec. 9, 2024

Language: Английский

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Flexible-Design in Controllable Synthesis of Ru Catalyst toward Enzymatic and Electrochemical Hydrogen Peroxides Performance

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(24), P. 11079 - 11089

Published: Jan. 1, 2024

Ru amorphous structure is synthesized in an ice-bath atmosphere with acceptable catalytic performance electrochemical detection and POD-like activity. Physical HIFU induced to crystalline state enhancement performance.

Language: Английский

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