Study on the design of micromixer and inspection of mixing efficiency

Ya-Hui Hu; Ming Chang

doi:10.1117/12.515191

15 March 2004 Study of the design of micromixer and inspection of mixing efficiency

Ya-Hui Hu, Ming Chang

Author Affiliations +

Proceedings Volume 5261, Smart Medical and Biomedical Sensor Technology; (2004) https://doi.org/10.1117/12.515191
Event: Optical Technologies for Industrial, Environmental, and Biological Sensing, 2003, Providence, RI, United States

Abstract

Rapid mixing is essential in many of the micro-fluidic systems targeted for use in the testing of biochip analysis, drug delivery, and analysis or synthesis of blood, among others. A design of a passive micro-mixer is presented in this paper. The mixing is based on the vortex phenomenon of fluid stirring and diffusion. The size of the mixer chip is 10mm×10mm, with a width of the channel of 200μm and a depth of 50μm. This mixer allows fast mixing of small amounts of liquids. A mathematical model that uses gray level contrast to evaluate the mixing efficiency is also proposed. The measurement principle is based on the statistical concept via a quadratic weighting distribution. Experimental results show that the mixing efficiency is over 80% for mixing two liquids with the same polarization and roughly 90% for the mixing of two inks. Thus a new type of biochip can be easily implemented with this system for the application in biomedical diagnostic technology.

Citation Download Citation

Ya-Hui Hu and Ming Chang "Study of the design of micromixer and inspection of mixing efficiency", Proc. SPIE 5261, Smart Medical and Biomedical Sensor Technology, (15 March 2004); https://doi.org/10.1117/12.515191

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE