Etched Co Fe Prussian blue analog nanozymes with superior peroxidase activity for colorimetric biosensing of hydrogen peroxide and dopamine DOI

N.C.H. Ramgopal,

Poulami Mukherjee, Tapanendu Kamilya

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 288, P. 138766 - 138766

Published: Dec. 12, 2024

Language: Английский

Kirkendall Effect-Mediated Transformation of ZIF-67 to NiCo-LDH Nanocages as Oxidase Mimics for Multicolor Point-of-Care Testing of β-Galactosidase Activity and Escherichia coli DOI

Lu Chen,

Huan Cheng,

Rong Hu

et al.

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

Published: Jan. 27, 2025

Early and portable detection of pathogenic bacteria is crucial for ensuring food safety, monitoring product quality, tracing the sources bacterial infections. Moving beyond traditional plate-culture counting methods, analysis active components offers a rapid means quantifying bacteria. Here, metal-organic framework (MOF)-derived NiCo-layered double hydroxide nanosheets (LDHs), synthesized via Kirkendall effect, were employed as highly effective oxidase mimics to generate reactive oxygen species (ROS). These ROS quickly etched gold nanobipyramids (Au NBPs), producing vivid multicolormetric response. Experimental results theoretical calculations indicated that exceptional oxidase-like activity NiCo-LDHs stemmed from presence bimetallic sites vacancies modulating local electronic structure LDHs. Additionally, β-galactosidase (β-Gal), biomarker Escherichia coli, reacted with p-aminophenyl-β-d-galactopyranoside (PAPG) form p-aminophenol (PAP), reducing agent which consumes ROS, thereby inhibiting etching Au NBPs. Furthermore, three-dimensional (3D)-printed point-of-care testing (POCT) shell was designed device visually detect β-Gal E. coli in conjugation smartphones. This study not only provides novel approach rational design nanozymes but also establishes portably visual biosensing platform detecting

Language: Английский

Citations

1
Ciprofloxacin-loaded copper oxide nanoparticles: Cutting-edge multifunctional nano-therapeutics with superior antidiabetic, antioxidant, anti-inflammatory, and antibacterial potency against drug-resistant pathogens DOI

Ibtissam Laib,

Abderrhmane Bouafia, Salah Eddine Laouini

et al.

Journal of Crystal Growth, Journal Year: 2025, Volume and Issue: unknown, P. 128074 - 128074

Published: Jan. 1, 2025

Language: Английский

Citations

0
A Smartphone-Integrated Cufe Aerogel Nanozyme for Rapid and Visual Detection of Ascorbic Acid in Real Samples DOI

Lijun Mao,

Wenhua Bi,

Jianqi Ye

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
High‐throughput Photoactive Magnetic Microrobots for Food Quality Control DOI Creative Commons
Roberto María‐Hormigos, Carmen C. Mayorga‐Martinez, Jeonghyo Kim

et al.

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

Published: March 11, 2025

Abstract Ensuring food quality and safety according to stringent global standards requires analytical procedures that are accurate, cost‐effective, efficient. This present innovative high‐throughput microrobots designed for the detection of antioxidants in samples. These consist photocatalytic bismuth subcarbonate anchored on silica‐coated magnetite nanoparticles. Upon exposure UV light, they generate reactive oxygen species via photocatalysis, which oxidize colorless dye into a green‐colored radical cation. The presence inhibits this reaction, allowing quantification antioxidant activity. magnetic Fe₃O₄/SiO₂ core enables steering using transverse rotating field, facilitating automated assays custom‐designed 3D‐printed sensing platform. results demonstrate these magneto‐photocatalytic can perform automated, assessments quality, representing significant advancement analysis technology.

Language: Английский

Citations

0
Enzyme-inspired nanosensing of food antioxidants: From targeted quantification to system-level analysis DOI
Lunjie Huang, Xinyuan Zhao, Jianlong Wang

et al.

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown, P. 105004 - 105004

Published: April 1, 2025

Language: Английский

Citations

0
A smartphone-integrated CuFe aerogel nanozyme for rapid and visual detection of ascorbic acid in real samples DOI

Lijun Mao,

Wenhua Bi,

Jianqi Ye

et al.

Talanta, Journal Year: 2025, Volume and Issue: 293, P. 128169 - 128169

Published: April 15, 2025

Language: Английский

Citations

0
Review: Nanozyme-based point-of-care testing for portable and on-site monitoring of food contaminants DOI
Huilin Li,

Meng Meng,

Jing Cao

et al.

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: 161, P. 105062 - 105062

Published: May 2, 2025

Language: Английский

Citations

0
Two birds with one stone: colorimetric and photothermal dual-mode biosensor based on CoOOH nanorings for detecting β-galactosidase activity and Escherichia coli DOI
Yong Wang,

Jia Hui Liu,

De Yan Li

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A multi-colorimetric and portable photothermal dual-mode biosensor with cross-references self-calibration was established for the analysis of β-galactosidase (β-Gal) Escherichia coli ( E. ).

Language: Английский

Citations

0
Smartphone-integrated Nanozyme approaches for rapid and on-site detection: Empowering smart food safety DOI

Flomo Peter Gbonyea,

Jiahang Wu,

Mengru Li

et al.

Food Chemistry, Journal Year: 2025, Volume and Issue: 486, P. 144678 - 144678

Published: May 8, 2025

Language: Английский

Citations

0
Enhanced peroxidase-like activity via Pt loading of Ni-MOF for colorimetric and smartphone-based bimodal determination of antioxidant capacity in aging cells DOI

Chan Yang,

Weiyu Qiu,

Shuo Tian

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 206, P. 111590 - 111590

Published: Sept. 7, 2024

Language: Английский

Citations

3