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Optical microsensor for counting food substance particles in lab-on-a-chips

conference contribution
posted on 2009-01-01, 00:00 authored by A Dixon, Abbas KouzaniAbbas Kouzani, Akif KaynakAkif Kaynak, B Sexton
Integrated optical detection is considered to be an important operation in lab-on-a-chips. This paper presents an optical fiber-based micro-sensor that is capable of detecting food substance particles in a lab-on-a-chip. The system consists of a microcontroller and associated circuitry, a laser emitter, a laser receiver, fiber optic cables, a microfluidics chip, and the food substance samples to be tested. When the particles flow through the microfluidic channel in the chip, the receiver’s output voltage varies due to the particles blocking the passage of the laser ray. The changes in the collected signals are analyzed to count the number of particles. Experiments are conducted on several food substance samples including talcum powder, ground ginger, and soy sauce. The experimental results are presented and discussed.



IEEE International Conference on Systems, Man, and Cybernetics (2009 : San Antonio, Texas)


4628 - 4633




San Antonio, Texas

Place of publication

New York, N. Y.

Start date


End date




Publication classification

E1 Full written paper - refereed; E Conference publication

Copyright notice

2009, IEEE

Title of proceedings

Proceedings of the IEEE International Conference on Systems, Man and Cybernetics