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Proceedings Paper

Microfluidic flow control using selective hydrophobic patterning
Author(s): Kalyan Handique; Bishnu P. Gogoi; David T. Burke; Carlos H. Mastrangelo; Mark A. Burns
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Paper Abstract

We have developed a method to pattern self assembled monolayer films of n-octadecyltrichlorosilane on silicon and glass substrates using a simple lift-off procedure. By defining hydrophobic regions at definite locations in microchannels and using an external pressure source, we can split off precise nanoliter volume liquid drops and control the motion of those drops through the microchannels. We have also constructed an on-chip pressure source for drop splitting and motion by heating air trapped in a micromachined chamber. Both techniques can produce and move drops on the order of 50 nl.

Paper Details

Date Published: 5 September 1997
PDF: 11 pages
Proc. SPIE 3224, Micromachined Devices and Components III, (5 September 1997); doi: 10.1117/12.284515
Show Author Affiliations
Kalyan Handique, Univ. of Michigan (United States)
Bishnu P. Gogoi, Univ. of Michigan (United States)
David T. Burke, Univ. of Michigan (United States)
Carlos H. Mastrangelo, Univ. of Michigan (United States)
Mark A. Burns, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 3224:
Micromachined Devices and Components III
Kevin H. Chau; Patrick J. French, Editor(s)

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