Single-cell trapping and selective treatment via co-flow within a microfluidic platform

Area of Science:

• Biomedical Engineering
• Cell Biology
• Microfluidics

Background:

• Lab on a chip (LOC) systems and microfluidics enable precise single-cell manipulation.
• Existing methods may lack cost-effectiveness or adaptability for specific cell studies.

Purpose of the Study:

• To design, fabricate, and characterize a versatile and inexpensive microfluidic platform for selective single-cell trapping and treatment.
• To demonstrate the platform's utility for studying drug effects and cell behavior under controlled conditions.

Main Methods:

• Development of a microfluidic platform utilizing laminar co-flow and hydrodynamic trapping.
• Fabrication and experimental characterization of the microfluidic device.
• Proof-of-concept cytotoxicity study using ethanol on isolated hepatocytes.

Main Results:

• Successful design, fabrication, and characterization of a cost-effective microfluidic platform.
• Demonstrated selective single-cell trapping and treatment capabilities using laminar co-flow.
• Validated the platform's effectiveness through a hepatocyte cytotoxicity study.

Conclusions:

• The developed microfluidic platform offers a simple, adaptable, and multipurpose solution for single-cell studies.
• This technology facilitates the investigation of novel drugs and dynamic cell behavior at the individual cell level.
• The platform has potential applications as a cell-based biosensor with single-cell resolution.