Towards practical sample preparation in point-of-care testing: user-friendly microfluidic devices.

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Microfluidics

Background:

• Microfluidic devices offer advantages for point-of-care testing (POCT) sample preparation.
• Complex external pumping systems hinder the widespread adoption of microfluidic devices in POCT.
• Developing user-friendly microfluidic systems is crucial for advancing practical POCT.

Purpose of the Study:

• To provide an overview of user-friendly microfluidic devices for POCT sample preparation.
• To discuss methods that eliminate the need for complicated external pumping systems.
• To explore future perspectives for integrated microfluidic circuits in POCT.

Main Methods:

• Review of self-operated microfluidic devices utilizing capillary force, vacuum-driven pressure, or gas-generating reactions.
• Review of hand-operated microfluidic devices employing manual power sources like syringes, pipettes, or finger actuation.
• Discussion on the integration of simple microfluidic valves for enhanced functionality.

Main Results:

• Self-operated devices leverage intrinsic forces for microchannel operation.
• Hand-operated devices utilize simple, readily available tools for fluid manipulation.
• Integration of microfluidic valves offers potential for more complex, user-friendly circuits.

Conclusions:

• User-friendly microfluidic devices are essential for practical POCT sample preparation.
• Eliminating complex external pumps through innovative designs enhances POCT accessibility.
• Future developments in integrated microfluidic circuits promise wider POCT applications.