Related Experiment Video
Updated: Jul 3, 2026
11:04
NiO Nanoflowers for Non-Enzymatic Amperometric Detection of Glucose
Published on: December 30, 2025
ZnO nanonails: synthesis and their application as glucose biosensor
Ahmad Umar1, M M Rahman, S H Kim
1Department of Semiconductor and Chemical Engineering Chonbuk National University, Jeonju 561-756, South Korea.
Journal of Nanoscience and Nanotechnology
|August 7, 2008
Summary
This study developed a highly sensitive glucose biosensor using zinc oxide nanonails for glucose oxidase immobilization. The novel biosensor offers rapid detection and a wide linear range for glucose monitoring.
Area of Science:
- Nanomaterials Science
- Biosensor Technology
- Electrochemistry
Background:
- Glucose biosensors are crucial for diabetes management.
- Developing efficient immobilization matrices enhances biosensor performance.
- Zinc oxide nanostructures offer unique properties for biosensing applications.
Purpose of the Study:
- To fabricate a novel glucose biosensor using zinc oxide (ZnO) nanonails.
- To immobilize glucose oxidase (GOx) onto ZnO nanonails for improved electron transfer.
- To evaluate the performance characteristics of the fabricated ZnO-based glucose biosensor.
Main Methods:
- High-density ZnO nanonails synthesized via thermal evaporation.
- Immobilization of glucose oxidase (GOx) onto ZnO nanonail surfaces.
- Fabrication and electrochemical characterization of the glucose biosensor.
Main Results:
- ZnO nanonails provided a matrix for GOx with enhanced spatial freedom.
- Facilitated direct electron transfer between GOx active sites and the electrode.
- Achieved high sensitivity (24.613 µA cm⁻² mM⁻¹), rapid response (<10 s), wide linear range (0.1–7.1 mM), and low detection limit (5 µM).
Conclusions:
- ZnO nanonails serve as an effective matrix for GOx immobilization.
- The fabricated biosensor demonstrates excellent sensitivity and rapid detection capabilities.
- This ZnO nanobiosensor shows significant potential for accurate glucose monitoring.
