Bimetallic CoMoO₄ Nanozymes Enhanced Luminol Chemiluminescence for the Detection of Dopamine

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(3), P. 2983 - 2991

Published: Jan. 22, 2024

Transition-metal-based nanozymes show great potential for chemiluminescence (CL) detection due to their stability, excellent catalytic properties, good biocompatibility, and facile synthesis. In this study, bimetallic CoMoO4 nanorods with high peroxidase activity were synthesized using a hydrothermal method, followed by calcination treatment. The as-synthesized utilized as catalysts CL the first time. They enhance intensity of luminol/hydrogen peroxide system nearly 750-fold. Furthermore, sensitive rapid platform dopamine was established based on quenching effect signal system. proposed method exhibited linear range 10–500 nM limit 1.98 nM. Moreover, in serum samples successfully measured standard addition showing satisfactory recovery 97.2–104.3%. This work provides robust support development efficient platforms detection.

Language: Английский

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Prunella vulgaris-phytosynthesized platinum nanoparticles: Insights into nanozymatic activity for H2O2 and glutamate detection and antioxidant capacity

Talanta, Journal Year: 2024, Volume and Issue: 274, P. 125998 - 125998

Published: April 3, 2024

Artificial nanozymes (enzyme-mimics), specifically metallic nanomaterials, have garnered significant attention recently due to their reduced preparation cost and enhanced stability in a wide range of environments. The present investigation highlights, for the first time, straightforward green synthesis biogenic platinum nanoparticles (PtNPs) from natural resource, namely Prunella vulgaris (Pr). To demonstrate effectiveness phytochemical extract as an effective reducing agent, PtNPs were characterized by various techniques such UV–vis spectroscopy, High-resolution Transmission electron microscopy (HR-TEM), zeta-potential analysis, Fourier-transform infrared spectroscopy (FTIR), Energy dispersive (EDS). formation with narrow size distribution was verified. Surface decoration demonstrated multitudinous functional groups springing herbal extract. use viable nanozymes, peroxidase-like activity Pr/PtNPs evaluated through colorimetric assay. Highly sensitive visual detection H2O2 discrete linear ranges low limit 3.43 μM demonstrated. Additionally, catalytic leveraged develop platform quantify glutamate biomarker levels high degree selectivity, (LOD) being 7.00 μM. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) test used explore scavenging nature via degradation DPPH. Overall, assay developed using Pr/PtNP this work could be broad spectrum applications, ranging biomedicine food science environmental monitoring.

Language: Английский

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Electrochemical assisted enhanced nanozymatic activity of functionalized borophene for H2O2 and tetracycline detection

Biosensors and Bioelectronics, Journal Year: 2023, Volume and Issue: 246, P. 115857 - 115857

Published: Nov. 24, 2023

Language: Английский

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Advances in Paper-based Colorimetric Sensors Based on Nanozymes for Point-of-Care Testing

Acta Chimica Sinica, Journal Year: 2025, Volume and Issue: 83(2), P. 170 - 170

Published: Jan. 1, 2025

Language: Английский

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Strong nanozymatic activity of silicene quantum dots: Enhanced sensitivity for the selective detection of H2O2 and dopamine in complex media

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113278 - 113278

Published: March 1, 2025

Language: Английский

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General introduction to nanotechnology-based sensors

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 21

Published: Jan. 1, 2025

Language: Английский

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Enhanced Nanozymatic Activity on Rough Surfaces for H2O2 and Tetracycline Detection

Biosensors, Journal Year: 2024, Volume and Issue: 14(2), P. 106 - 106

Published: Feb. 17, 2024

The needless use of tetracyclines (TCs) in foodstuffs is a huge health concern low- and middle-income Arab countries. Herein, sensitive faster monitoring system for H2O2 TCs proposed, utilizing the large surface-to-volume ratio non-spherical gold nanoparticle/black phosphorus nanocomposite (BP-nsAu NPs) first time. BP-nsAu NPs were synthesized through single-step method that presented nanozymatic activity 3,3′,5,5′-Tetramethylbenzidine (TMB) oxidation while was present obeyed Michaelis–Menten equation. enhanced 12-fold their detection time decreased 83-fold compared to conventional reactions. proposed enabled us quantify with limit (LOD) value 60 nM. Moreover, target-specific aptamer-conjugated helped detect an LOD 90 strategy provides proficient route low-level TC real samples.

Language: Английский

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Synthesis and application of graphdiyne-based materials for advanced chemical sensors

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 521, P. 216171 - 216171

Published: Aug. 29, 2024

Language: Английский

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A comprehensive review on luminescent carbon dots and their polymer composites: Synthesis to applications

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 40, P. 101339 - 101339

Published: Sept. 26, 2024

Language: Английский

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Prudently designed Se@fMWCNT as a peroxidase mimicking nanozyme for distinctive electrochemical detection of H₂O₂ and glutathione

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(24), P. 8924 - 8934

Published: Jan. 1, 2024

A Se@fMWCNT nanocomposite with peroxidase mimicking activity was used for the electrochemical detection of H 2 O and glutathione. Both analytes were detected using amperometry at a low potential −0.2 V, excellent selectivity sensitivity.

Language: Английский

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