ZnO based potentiometric and amperometric nanosensors

Area of Science:

• Nanomaterials Science
• Chemical Sensing
• Biotechnology

Background:

• Nanomaterials offer high sensitivity and low detection limits for sensing applications.
• Metal oxides, particularly zinc oxide (ZnO), are favored for their low toxicity, biocompatibility, and ease of synthesis.
• ZnO nanostructures provide an ideal environment for immobilizing biomolecules while preserving their activity.

Purpose of the Study:

• To review the application of ZnO nanorods with ionophore and enzyme coatings for chemical sensing.
• To highlight the use of ZnO nanostructures in detecting zinc ions, thallium (I) ions, L-lactic acid, and galactose.
• To emphasize the excellent transducing properties of ZnO nanorods for generating electrical signals in sensing.

Main Methods:

• Utilizing ZnO nanorods as a substrate for sensor development.
• Applying ionophore and enzyme coatings onto ZnO nanorod surfaces.
• Investigating electrochemical sensing capabilities for specific analytes.

Main Results:

• ZnO nanorods demonstrate effective transduction for signal generation in sensors.
• Coated ZnO nanorods facilitate the detection of various chemical and biological species.
• The nanostructure of ZnO enhances the immobilization and retention of biomolecular function.

Conclusions:

• ZnO nanostructures are highly effective for electrochemical sensing applications.
• Surface modification of ZnO nanorods with specific coatings expands their sensing capabilities.
• ZnO nanorods present a versatile and promising platform for advanced chemical and biological detection systems.