Absorption detection of enzymatic reaction using optical microfluidics based intermittent flow microreactor system.

Area of Science:

• Nanobiotechnology
• Biomedical Engineering
• Analytical Chemistry

Background:

• Microfluidics and photonics integration offers advantages for lab-on-a-chip (LOC) devices.
• These advantages include reduced sample volumes, controlled delivery, and high-throughput analysis.
• Applications span in situ medical diagnosis and point-of-care (POC) testing.

Purpose of the Study:

• To develop a hybrid integrated optical microfluidic system.
• To investigate its utility for studying single molecules and enzymatic reactions.
• To demonstrate the feasibility of absorption-based biosensing on a microfluidic platform.

Main Methods:

• Development of a hybrid optical microfluidic system.
• Utilizing optical absorption as the biosensing method.
• Demonstration with horseradish peroxidase and hydrogen peroxide reactions.

Main Results:

• The system successfully analyzed individual chemical specimens.
• The system facilitated the study of chemical and biological reactions.
• Feasibility of absorption-based detection on the microfluidic platform was confirmed.

Conclusions:

• Hybrid integration of microfluidics and optical components is key for microreactor LOC devices.
• This approach forms a foundation for advancements in nanobiotechnology.
• The developed system has significant potential for various applications.