Recent Progress in Lab-on-a-Chip Technology and Its Potential Application to Clinical Diagnoses

Area of Science:

• Biomedical Engineering
• Microfluidics
• Polymer Science

Background:

• Lab-on-a-chip (LOC) technology offers miniaturization of laboratory functions.
• Polymer materials like poly(dimethylsiloxane) are suitable for microfluidic device fabrication.
• Clinical applications require integrated, portable, and disposable diagnostic systems.

Purpose of the Study:

• To present the construction of an integrated lab-on-a-chip (LOC) system.
• To demonstrate the functional integration of independent unit components into a monolithic LOC system.
• To showcase the potential of microfluidic devices for clinical applications.

Main Methods:

• Fabrication of LOC system components using polymer materials (poly(dimethylsiloxane)).
• Integration of microscale polymerase chain reaction (PCR) with a single heater.
• Development of a microscale sample injection device using a disposable syringe.
• Device assembly utilizing surface modification techniques under mild conditions.

Main Results:

• Successful construction of a monolithic, integrated LOC system.
• Demonstration of microscale PCR and sample injection.
• Development of a pressure-operated system for enhanced portability and disposability.
• Achieved simple and rapid operation for on-site medical and clinical diagnoses.

Conclusions:

• The developed LOC system is a state-of-the-art technology for miniaturized laboratory functions.
• The integrated microfluidic device shows significant potential for clinical applications, including on-site diagnostics.
• The system's portability, disposability, and ease of use can advance medical diagnoses and potentially urodynamic studies.