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

Highly sensitive electrochemical immunosensor for alpha-fetoprotein detection based on trimetallic metal-organic framework nanozymes with peroxidase-like activity

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

Eco-conscious Fe–Cu bimetallic nanozymes as a multimodal colorimetric platform for glucose and hexavalent chromium determination

The integration of sustainable nanotechnology with portable analytical systems offers a promising strategy for advancing point-of-care (POC) diagnostic platforms with Green and White Analytical Chemistry. In this work, eco-conscious iron–copper bimetallic nanozymes (Fe–Cu BNPs) were synthesized through a facile aqueous...

CuCo-N-C nanozyme-mediated hydrogel colorimetric platform: dual-reading modes of ratiometry and smartphone for nitrite detection.

As a potentially hazardous food additive, nitrite acts as a double-edged sword, since excessive intake can trigger severe health risks. Developing an efficient and convenient on-site detection method for nitrite in food is therefore of great significance, yet remains challenging. To address this issue, a dual-mode colo...