Manganese dioxide nanosheets triggered fluorescence and colorimetric dual-mode immunoassay for detection of Ochratoxin A DOI
Yuanyuan Wang, Xin Yang, Xiaowei Chen

et al.

Food Control, Journal Year: 2024, Volume and Issue: unknown, P. 111045 - 111045

Published: Nov. 1, 2024

Language: Английский

Covalent Coupling-Regulated rGO/VN Nanocomposite Enabling Nitrogen Defects to Remarkably Boost the Peroxidase-Like Catalytic Efficiency for the Ultrasensitive Colorimetric Assay of Uric Acid DOI
Xin Zhang,

Ziyan Yuan,

Ziting Lin

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 9, 2025

It remains challenging to rationally design superior nanozymes and understand the underlying mechanism. Herein, a facile covalent coupling-modulated nitrogen defect is reported for significantly boosting peroxidase (POD)-like activity. Vanadium nitride (VN) nanoparticles are grown on graphene oxide (GO) via C–N bonding form VN/rGO nanocomposites by varying with VOx/GO ratio. The initial increasing GO amount enables formation of bond, dramatically POD-like Nevertheless, higher amount, defects decrease due forming mainly V2O3. defect-rich nanocomposite 20 wt % (VG-2) exhibits best catalytic efficiency (Vmax/Km = 0.0187 s–1), which 778-fold than that natural horseradish peroxidase. Theoretical calculations structure characterization reveal rich-N originate from VN binding onto rGO an rich-electron structure, impeding agglomeration, greatly reduces energy barrier rate-determining step reaction. Finally, coupling urate oxidase VG-2 as enzyme cascade, ultrasensitive selective colorimetric detection was developed uric acid (UA), one indicators kidney function or gout attacks, linear ranging 1–100 μM 0.1–2.5 mM limit 0.24 UA (S/N 3). proposed method applicable detecting in human serum samples satisfactorily. This work could inspire more effective insights into designing other robust through variety biochemical analysis biocatalysis applications.

Language: Английский

Citations

2
High-sensitivity flexible electrochemical sensor for real-time multi-analyte sweat analysis DOI
Yan Zhang, Yining Sun,

Jingxuan Han

et al.

Talanta, Journal Year: 2025, Volume and Issue: 287, P. 127644 - 127644

Published: Jan. 27, 2025

Language: Английский

Citations

1
Oxidase mimicking nanozyme based sensors: From classification and catalytic mechanisms to food safety applications DOI
Mohammed Asiri, Ayad Abdulrazzaq Mutar, Enwa Felix Oghenemaro

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 112640 - 112640

Published: Jan. 1, 2025

Language: Английский

Citations

0
MCM 41 Functionalized Cobalt(II) Complex Bearing NNS Dithiocarbazate and Its Bio-relevant Catechol Oxidase Mimics DOI
M. Palanisamy, Paranthaman Vijayan,

Manogaran Tamiliniyaa

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Language: Английский

Citations

0
Sensitive colorimetric sensing of dopamine and TYR based on enhanced HRP-like activity of CuNi/Fe LDHs nanozymes DOI

Fenghua Geng,

Min Huang, Xiaoli Zhang

et al.

Microchimica Acta, Journal Year: 2025, Volume and Issue: 192(3)

Published: March 1, 2025

Language: Английский

Citations

0
An electrochemical DNA biosensor based on denatured vesicle-mediated chain exchange amplification combined with electric field-assistance for nucleic acid detection DOI
Jinling Cui,

Ritong Sun,

Yu Liao

et al.

Analytical Methods, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

An electrochemical DNA biosensor was developed based on SEA, which can detect 1 fg uL −1 genomic within 65 min. The electrode surface modified with AuNPs to improve sensitivity and the accelerated by electric field.

Language: Английский

Citations

0
Sensitive amperometric immunosensor for pathogen antigen based on MoS2@AuNPs assembling dual-peptide as bioprobes with significant dual signal amplification DOI

Zongmei Zheng,

Mingyang Wang, Jinlong Yuan

et al.

Analytica Chimica Acta, Journal Year: 2025, Volume and Issue: 1355, P. 344015 - 344015

Published: April 6, 2025

Language: Английский

Citations

0
MgMn-LDHzyme assisted electrochemical sensor for high-performance point-of-care detection of adrenaline in urine and sweat DOI

Z Li,

Ting Liu, Chenyu Wang

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113711 - 113711

Published: April 1, 2025

Language: Английский

Citations

0
Mechanism of pesticide thiram reversibly inhibiting of Pt single-atom peroxidase-mimicking nanozyme and its application in colorimetric sensing thiram DOI

Ziting Lin,

Guangze Sun,

Huan Liu

et al.

Talanta, Journal Year: 2025, Volume and Issue: unknown, P. 128201 - 128201

Published: April 1, 2025

Language: Английский

Citations

0
Bimetallic CuAg nanoflowers with high nanozyme activity for detection of acid phosphatase DOI
Yaxin Sang,

Pengchao Wu,

Jia Ge

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113808 - 113808

Published: April 1, 2025

Language: Английский

Citations

0