An IMP-Reset gate-based reusable and self-powered "smart" logic aptasensor on a microfluidic biofuel cell.

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Biosensors

Background:

• Microfluidic devices are crucial for developing low-cost diagnostics and environmental monitoring.
• Microfluidic biofuel cells (micro-BFCs) offer self-regulating power release capabilities.
• Aptamers provide specific molecular recognition for target analytes.

Purpose of the Study:

• To develop a novel, reusable, and self-powered on-chip aptasensor.
• To integrate microfluidic biofuel cells with aptamer IMP logic for enhanced functionality.
• To enable logical determination of specific target presence in complex samples.

Main Methods:

• Construction of an IMP-Reset gate-based aptasensor.
• Integration of microfluidic biofuel cells for self-powering.
• Utilizing aptamer logic for target-specific detection in complex matrices like human serum.

Main Results:

• Demonstrated a reusable and self-powered on-chip aptasensor.
• Successfully achieved logical detection of a specific target in the absence of another.
• Validated performance in complex physiological samples, such as human serum.

Conclusions:

• The developed aptasensor offers a promising platform for point-of-care diagnostics.
• The integration of microfluidic biofuel cells and aptamer logic enhances sensor reusability and self-sufficiency.
• This technology enables precise and selective detection in complex biological environments.