Perspectives for the Role of Single-Atom Nanozymes in Assisting Food Safety Inspection and Food Nutrition Evaluation

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(5), P. 1813 - 1824

Published: Jan. 25, 2024

Single-atom nanozymes (SAzymes) have been greatly developed for rapid detection, owing to their rich active sites and excellent catalytic activity. Although several reviews concentrating on SAzymes reported, they mainly focused advanced synthesis, sensing mechanisms, biomedical applications. To date, few elaborate the promising applications of in food safety inspection nutrition evaluation. In this paper, we systematically reviewed enzyme-like activity mechanism, addition recent research advances domain evaluation past years. Furthermore, current challenges hampering practical assay are summarized analyzed, possible areas focusing SAzyme-based sensors testing also proposed.

Language: Английский

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Metal-Phenolic Chemistry Mediates Assembly of Single-Atom Nanozymes for Cancer Therapy

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Language: Английский

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Novel Immunosensor Based on Metal Single-Atom Nanozymes with Enhanced Oxidase-Like Activity for Capsaicin Analysis in Spicy Food

Journal of Agricultural and Food Chemistry, Journal Year: 2024, Volume and Issue: 72(22), P. 12832 - 12841

Published: May 24, 2024

Capsaicin (CAP) is a primary indicator for assessing the level of pungency. Herein, iron-based single-atom nanozymes (SAzymes) (Fe/NC) with exceptional oxidase-like activity were used to construct an immunosensor CAP analysis. Fe/NC could imitate oxidase actions by transforming O2 •O2– radicals in absence hydrogen peroxide (H2O2), which avoid complex operations and unstable results. By regulating Fe atom loads, optimal Fe0.7/NC usage rate improve catalytic (Michaelis–Menten constant (Km) = 0.09 mM). was integrated goat antimouse IgG facile mix incubation develop competitive enzyme-linked immunosorbent assay (ELISA). Our immunosensing platform anticipated outperform conventional ELISA terms stability shelf life. The proposed provided color responses across 0.01–1000 ng/mL concentrations, detection limit 0.046 ng/mL. may have potential as spicy foods, promising applications food biosensing.

Language: Английский

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The enhanced oxidase-like activity of modified nanoceria/ZIF-67 for fluorescence and smartphone-assisted visual detection of tannic acid

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 418, P. 136130 - 136130

Published: July 3, 2024

Language: Английский

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Metal-organic framework-based nanozymes for water-soluble antioxidants and Total antioxidant capacity detection: Principles and applications

Food Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 143876 - 143876

Published: March 1, 2025

Language: Английский

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Synergistic action of cavity and catalytic sites in etched Pd–Cu2O octahedra to augment the peroxidase-like activity of Cu2O nanoparticles for the colorimetric detection of isoniazid and ascorbic acid

Biosensors and Bioelectronics, Journal Year: 2023, Volume and Issue: 246, P. 115880 - 115880

Published: Nov. 27, 2023

Language: Английский

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Copper-nitrogen doped carbon nanosheet-based electrochemical sensors for the detection of luteolin and baicalein

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(5)

Published: Feb. 1, 2024

Language: Английский

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Dual-mode fluorescence and colorimetric smartphone-based sensing platform with oxidation-induced self-assembled nanoflowers for sarcosine detection

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1306, P. 342586 - 342586

Published: April 8, 2024

Language: Английский

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Electron Reservoir MoO_3–x‐Driven Cu⁺ Doped Nanozyme with Enhanced Antibacterial Activity via Disrupting Redox Homeostasis

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: 42(18), P. 2187 - 2196

Published: May 14, 2024

Comprehensive Summary Redox nanozymes offer an appealing reactive oxygen species (ROS)‐based antibacterial strategy via disrupting intracellular homeostasis, however, they still face many obstacles such as low enzymic activity and irreversible loss of catalytic active center. Meanwhile, the antioxidant glutathione (GSH) overexpressed in infected sites would limit therapy efficiency. Herein, we develop a multifunctional nanozyme based on copper(I) (Cu + ) ion doped MoO 3– x ‐MoO by simple yet efficient vacancy‐reduced without any pretreatment or additional agents. The resultant Cu hybrid possesses enhanced peroxidase‐like (POD‐like) activity, rapid GSH‐depleting function biodegradable ability. It can achieve highly elimination Pseudomonas aeruginosa ( P. cellular redox balance. More intriguingly, reaction between GSH could translate Mo 6+ into 5+ , thereby leading to partial recovery POD‐like for continuous ∙ OH generation. In vitro vivo experiments demonstrated that had stronger property compared consumption plentiful generation providing extra H 2 O well neglective toxicity healthy organs. view its remarkable good biosafety, developed be used promising antimicrobial infection.

Language: Английский

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Enhanced biomimetic catalysis via self-cascade photocatalytic hydrogen peroxide production over modified carbon nitride nanozymes for total antioxidant capacity evaluation

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 660, P. 771 - 779

Published: Jan. 21, 2024

Language: Английский

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