Recent advances in colorimetric sensors based on nanozymes with peroxidase-like activity

Z Chi, Q Wang, J Gu - Analyst, 2023 - pubs.rsc.org
Nanozymes have been widely used to construct colorimetric sensors due to their
advantages of cost-effectiveness, high stability, good biocompatibility, and ease of …

Application of nanozymes in environmental monitoring, management, and protection

M Wang, P Zhu, S Liu, Y Chen, D Liang, Y Liu, W Chen… - Biosensors, 2023 - mdpi.com
Nanozymes are nanomaterials with enzyme-like activity, possessing the unique properties
of nanomaterials and natural enzyme-like catalytic functions. Nanozymes are catalytically …

Highly selective and sensitive detection of nitrite ion by an unusual nitration of a fluorescent benzimidazole

L Singh, N Ranjan - Journal of the American Chemical Society, 2023 - ACS Publications
Nitrite (NO2–) is a physiologically significant anion having implications for cellular signaling.
Here we report our serendipitous discovery of highly selective fluorescence-based nitrite …

Nanozymes—Hitting the biosensing “target”

Y Wu, DC Darland, JX Zhao - Sensors, 2021 - mdpi.com
Nanozymes are a class of artificial enzymes that have dimensions in the nanometer range
and can be composed of simple metal and metal oxide nanoparticles, metal nanoclusters …

Synthesis and DFT calculation of microbe-supported Pd nanocomposites with oxidase-like activity for sensitive detection of nitrite

G Wang, N Feng, S Zhao, L Song, Y Zhang, J Tong… - Food Chemistry, 2024 - Elsevier
Nanozymes have emerged as the forefront of research in analytical sensing due to their
promising applications. In this study, we utilized polyethyleneimine (PEI)-modified Pichia …

High-performance biosensor using a sandwich assay via antibody-conjugated gold nanoparticles and fiber-optic localized surface plasmon resonance

HM Kim, HJ Kim, JH Park, SK Lee - Analytica chimica acta, 2022 - Elsevier
For real-time and high-sensitivity analysis of low-concentration targets, a sandwich
immunoassay using second antibody-second gold nanoparticle (2nd Ab-2nd AuNP) …

Citric acid-functionalized rhodium–platinum nanoparticles as peroxidase mimics for determination of cholesterol

SE Son, PK Gupta, W Hur, HB Lee, Y Park… - ACS Applied Nano …, 2021 - ACS Publications
Nanostructured artificial enzymes, also called nanozymes, are considered effective
substitutes for natural enzymes. In this study, citric acid-functionalized rhodium–platinum …

Colorimetric and photothermal dual-mode immunoassay of aflatoxin B1 based on peroxidase-like activity of Pt supported on nitrogen-doped carbon

S Huang, W Lai, B Liu, M Xu, J Zhuang, D Tang… - Spectrochimica Acta Part …, 2023 - Elsevier
In this work, a split-type dual-mode (colorimetric/photothermal) immunoassay method was
designed for point-of-care testing (POCT) detection of mycotoxins (aflatoxin B 1, AFB 1 as …

Gold nanoparticles-based colorimetric assays for environmental monitoring and food safety evaluation

Z Sadiq, SH Safiabadi Tali, H Hajimiri… - Critical Reviews in …, 2022 - Taylor & Francis
Recent years have witnessed an exponential increase in the research on gold nanoparticles
(AuNPs)-based colorimetric sensors to revolutionize point-of-use sensing devices. Hence …

A fluorescent and ratiometric colorimetric biosensor for detection of different hazard contaminants in dairy products

W Zuo, P Wu, W He, Q Xiao, J Yang, X Liu… - Sensors and Actuators B …, 2023 - Elsevier
The quality and safety of dairy products are directly related to public health. However, it
remains challenging to achieve detection of multi-class dairy hazard contaminants. Herein …