Colorimetric and photothermal dual-mode sensing platform for catecholamines detection based on an irregular octahedral CoFe bimetallic organic framework nanozyme

A smartphone-assisted colorimetric sensor for sensitive and portable sensing of methimazole based on high-entropy Prussian blue nanozymes.

It is critical to exploit a sensitive, selective, and portable strategy for the credible detection of methimazole (MMI) for human health. Herein, high-entropy Prussian blue analogues (HE-PBAs) nanozyme were successfully fabricated by a facile co-precipitation strategy. The as-synthesized HE-PBAs possess robust peroxida...

A dual-mode electrochemical-colorimetric sensor based on Cu-MoSe2@AuNPs nanozyme assembly for the determination of ochratoxin A in food

Dual-mode sensor based on atomically dispersed CuCu-N2O2 site in a Salen-based covalent-organic framework for electrochemical-colorimetric detection of dopamine and uric acid.

We have developed a novel electrochemical-colorimetric dual-modal sensor based on a metallosalen-based covalent organic framework (Salen-COF) for separate electrochemical quantification of uric acid (UA) and dopamine (DA) and colorimetric screening of their total amount. The Salen-COF was synthesized via a Schiff-base...

Portable bioactive capsule-integrated electrochemical-colorimetric dual-mode biosensor based on Mn/Ce MOF nanozyme for rapid detection of malathion in water

A ratiometric nanozyme sensor with smartphone-assisted visual detection for rapid nitrite detection in meat products based on Mn2O3/MnNiO3 composite microspheres

Dual-mode colorimetric and photothermal sensing platform for point-of-care testing of uric acid based on enhanced peroxidase-like activity of platinum-based nanozyme by adenosine triphosphate.

To break through the limitation of low peroxidase-like (POD-like) activity of conventional nanozymes at neutral pH, platinum-based nanozyme assisting with adenosine triphosphate (Pt NZ/ATP) system is prepared in this study. ATP enables to promote the stability of Pt NZ and the production of O2•- and •OH, and Pt NZ/ATP...