Platinum nanoparticle modified polyaniline-functionalized boron nitride nanotubes for amperometric glucose enzyme...

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• Development of advanced biosensors is crucial for accurate glucose monitoring.
• Boron nitride nanotubes (BNNTs) offer unique properties for nanomaterial applications.
• Polyaniline (Pani) and platinum (Pt) nanoparticles can enhance electrochemical sensor performance.

Purpose of the Study:

• To develop a novel amperometric glucose biosensor using BNNTs-Pani-Pt hybrids.
• To investigate the properties and performance of the developed hybrid material for glucose detection.
• To evaluate the stability and anti-interference capabilities of the biosensor under various conditions.

Main Methods:

• Fabrication of BNNTs-Pani-Pt hybrid material.
• Decoration of Pt nanoparticles on Pani-wrapped BNNTs.
• Characterization of the hybrid material's structure and properties.
• Assembly of the amperometric glucose biosensor and electrochemical measurements.

Main Results:

• The BNNTs-Pani-Pt hybrid exhibited π interactions, enhancing water solubility.
• The glucose biosensor showed high sensitivity (19.02 mA M⁻¹ cm⁻²), a wide linear range (0.01–5.5 mM), and a low detection limit (0.18 μM).
• The biosensor demonstrated excellent stability across a pH range of 3–7 and maintained high enzyme activity at 60 °C.

Conclusions:

• The developed BNNTs-Pani-Pt hybrid biosensor is highly sensitive, stable, and reproducible.
• The unique acid and thermal stability makes it suitable for industrial and biotechnological applications under harsh conditions.
• The synergistic effects of BNNTs, Pani, and Pt contribute to the superior performance of the glucose biosensor.