Three-Dimensional Ni2P Nanoarray: An Efficient Catalyst Electrode for Sensitive and Selective Nonenzymatic Glucose...

Area of Science:

• Electrochemistry
• Materials Science
• Analytical Chemistry

Background:

• Developing enzyme-free electrochemical sensors for glucose detection is crucial for diabetes management.
• Traditional glucose sensors often suffer from enzyme instability and interference.

Discussion:

• A novel nickel phosphide nanoarray on conductive carbon cloth (Ni2P NA/CC) was synthesized as a 3D catalyst electrode.
• The Ni2P NA/CC electrode facilitates efficient glucose electrooxidation in alkaline media, serving as a nonenzymatic glucose sensor.

Key Insights:

• The Ni2P NA/CC sensor exhibits superior analytical performance: rapid 5 s response time, wide detection range (1 μM–3 mM), low limit of detection (0.18 μM), and high sensitivity (7792 μA mM⁻¹ cm⁻²).
• The sensor demonstrates excellent selectivity, specificity, and reproducibility.
• Successful glucose detection in human blood serum highlights its potential for real-world applications.

Outlook:

• This enzyme-free Ni2P NA/CC electrode offers a promising alternative for sensitive and reliable glucose monitoring.
• Further research can explore its long-term stability and integration into portable sensing devices.