skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mobile Monolith Polymer Elements For Flow Control In Microfluidic Systems

Abstract

A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be made incorporating a cast-in-place, mobile monolithic polymer element, disposed within a microchannel, and driven by fluid pressure (either liquid or gas) against a retaining or sealing surface. The polymer elements are made by the application of lithographic methods to monomer mixtures formulated in such a way that the polymer will not bond to microchannel walls. The polymer elements can seal against pressures greater than 5000 psi, and have a response time on the order of milliseconds. By the use of energetic radiation it is possible to depolymerize selected regions of the polymer element to form shapes that cannot be produced by conventional lithographic patterning and would be impossible to machine.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Saline, MI)
  2. (Alameda, CA)
  3. (Livermore, CA)
  4. (San Francisco, CA)
Publication Date:
Research Org.:
Sandia Corporation
OSTI Identifier:
880174
Patent Number(s):
US 6988402
Application Number:
10/655337
Assignee:
Sandia National Laboratories (Livermore, CA) OSTI
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Hasselbrink, Jr., Ernest F., Rehm, Jason E., Shepodd, Timothy J., and Kirby, Brian J. Mobile Monolith Polymer Elements For Flow Control In Microfluidic Systems. United States: N. p., 2006. Web.
Hasselbrink, Jr., Ernest F., Rehm, Jason E., Shepodd, Timothy J., & Kirby, Brian J. Mobile Monolith Polymer Elements For Flow Control In Microfluidic Systems. United States.
Hasselbrink, Jr., Ernest F., Rehm, Jason E., Shepodd, Timothy J., and Kirby, Brian J. Tue . "Mobile Monolith Polymer Elements For Flow Control In Microfluidic Systems". United States. doi:. https://www.osti.gov/servlets/purl/880174.
@article{osti_880174,
title = {Mobile Monolith Polymer Elements For Flow Control In Microfluidic Systems},
author = {Hasselbrink, Jr., Ernest F. and Rehm, Jason E. and Shepodd, Timothy J. and Kirby, Brian J.},
abstractNote = {A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be made incorporating a cast-in-place, mobile monolithic polymer element, disposed within a microchannel, and driven by fluid pressure (either liquid or gas) against a retaining or sealing surface. The polymer elements are made by the application of lithographic methods to monomer mixtures formulated in such a way that the polymer will not bond to microchannel walls. The polymer elements can seal against pressures greater than 5000 psi, and have a response time on the order of milliseconds. By the use of energetic radiation it is possible to depolymerize selected regions of the polymer element to form shapes that cannot be produced by conventional lithographic patterning and would be impossible to machine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 24 00:00:00 EST 2006},
month = {Tue Jan 24 00:00:00 EST 2006}
}

Patent:

Save / Share: