A Microfluidic PET-Based Electrochemical Glucose Sensor

Area of Science:

• Analytical Chemistry
• Materials Science
• Biomedical Engineering

Background:

• Paper-based microfluidic sensors offer advantages like low cost and ease of use for analytical assays.
• Existing paper-based sensors have limitations including complex fabrication, electrode fragility, and disposability, hindering specific applications like blood glucose monitoring.
• These deficiencies necessitate the development of alternative substrates for microfluidic devices.

Purpose of the Study:

• To develop and evaluate a novel PET-based microfluidic sensor as an alternative to paper-based platforms.
• To address the limitations of paper-based microfluidic sensors, particularly for glucose detection.
• To assess the performance of the PET-based sensor for biochemical analyses.

Main Methods:

• Fabrication of a novel microfluidic sensor using Polyethylene terephthalate (PET) as the substrate.
• Testing and performance evaluation of the PET-based sensor using glucose as the target analyte.
• Comparison of the sensor's analytical performance with existing commercial glucose meters.

Main Results:

• The PET-based microfluidic sensor demonstrated robust performance in glucose detection.
• Analytical performance of the developed sensor was found to be comparable to that of commercial glucose meters.
• The study validated the suitability of PET as a substrate for microfluidic chips in biochemical analyses.

Conclusions:

• PET-based microfluidic sensors offer a viable alternative to paper-based sensors, overcoming key limitations.
• The developed sensor shows promise for accurate and reliable glucose monitoring.
• Substrate selection is a critical factor in optimizing microfluidic chip design for various biochemical applications.