Related Experiment Video
Updated: May 4, 2026

NiO Nanoflowers for Non-Enzymatic Amperometric Detection of Glucose
Published on: December 30, 2025
Amperometric glucose sensor based on enhanced catalytic reduction of oxygen using glucose oxidase adsorbed onto
Ai-Jun Wang1, Yong-Fang Li2, Zhong-Hua Li3
1College of Geography and Environmental Science, College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China; Key Laboratory of Green Chemical Media and Reactions, Ministry of Education; School of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China.
Abstract:
Monodisperse Fe3O4 magnetic nanoparticles (NPs) were prepared under facile solvothermal conditions and successively functionalized with silica and Au to form core/shell Fe3O4@silica@Au NPs. Furthermore, the samples were used as matrix to construct a glucose sensor based on glucose oxidase (GOD). The immobilized GOD retained its bioactivity with high protein load of 3.92×10(-9) mol·cm(-2), and exhibited a surface-controlled quasi-reversible redox reaction, with a fast heterogeneous electron transfer rate of 7.98±0.6 s(-1). The glucose biosensor showed a broad linear range up to 3.97 mM with high sensitivity of 62.45 μA·mM(-1) cm(-2) and fast response (less than 5s).
More Related Videos
13:42Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation
Published on: September 19, 2017
09:15Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
Published on: November 22, 2016
Related Concept Videos
Amperometry: Overview
Microbial Biosensors