Investigations on copper-titanate intercalation materials for amperometric sensor

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Layered titanate materials are promising for electrochemical applications.
• Developing efficient electrode materials for biosensors is crucial.
• Enzymeless glucose detection offers advantages over traditional methods.

Purpose of the Study:

• To synthesize novel copper-based titanate intercalation electrode materials (Cu-TO).
• To fabricate and evaluate Cu-TO based sensors for enzymeless glucose detection.
• To investigate the electrochemical properties and performance of these sensors.

Main Methods:

• Synthesis of Cu-TO via electrochemical reduction and ion exchange using n-propylamine.
• Characterization using X-ray diffraction (XRD), electrochemical techniques, and ICP-AES.
• Fabrication of sensors and evaluation using cyclic voltammetry (CV) and chronoamperometry (I-t).

Main Results:

• Cu-TO materials exhibited high sensitivity, fast response, and good stability for glucose detection.
• The sensor demonstrated a wide linear range (2.5x10(-7) M to 8.0x10(-3) M) and a low detection limit (5.0x10(-8) M).
• Cu-TO showed improved selectivity and stability compared to conventional copper electrodes.

Conclusions:

• Copper-based titanate intercalation materials are effective for developing high-performance enzymeless glucose sensors.
• The developed sensor offers a reliable and sensitive method for glucose determination.
• This work presents a versatile platform for electrochemical functionalization of layered titanates for sensor development.