Manganese Dioxide Nanoflower-Based Aptananozyme (MnO2 NFs@Apt): A Novel Colorimetric/Fluorescent Dual-Mode Platform for Aflatoxin B1 Detection

MCOF-assisted and MnO2 nanozyme-triggered cascade dual-mode aptasensor for intelligent detection of Salmonella Typhimurium.

Conventional methods for detecting Salmonella Typhimurium in food often require lengthy procedures or specialized instrumentation. We developed a dual-mode aptasensor based on magnetic covalent organic frameworks (MCOFs) and MnO2 nanozymes. MCOF-AuNPs@apt captures bacteria, followed by MnO2@apt binding to form sandwich...

A target-induced displacement-assisted colorimetric aptasensor for tetracycline detection based on Co MOF@Au NPs nanozymes.

Tetracycline (TC) residues in milk present a potential risk to food safety and human health, highlighting the urgent need to develop rapid and reliable detection strategies. Herein, a target-induced displacement (TID)-based colorimetric aptasensor was assembled for the sensitive detection of TC using oxidase (OXD)-like...

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

A Bifunctional CoFcMOF Nanozyme Enables Dual-Mode PEC-Colorimetric Immunosensing of C-Reactive Protein with Built-In Cross-Validation.

C-reactive protein (CRP), a key inflammatory biomarker, plays a critical role in clinical diagnostics; however, its reliable quantification demands analytical methods that surpass the limitations of conventional single-mode detection by integrating high sensitivity with built-in signal fidelity. Herein, we report a dua...

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

Zein–templated synthesis of Au@Pt bimetallic nanozymes: a multi–mode lateral flow immunoassay platform for ultrasensitive colorimetric and fluorometric detection of tetracycline in food