Microfluidic device and methods for focusing fluid streams using electroosmotically induced pressures
Abstract
A microfabricated device employing a bridging membrane and methods for electrokinetic transport of a liquid phase biological or chemical material using the same are described. The bridging membrane is deployed in or adjacent to a microchannel and permits either electric current flow or the transport of gas species, while inhibiting the bulk flow of material. The use of bridging membranes in accordance with this invention is applicable to electrokinetically inducing fluid flow to confine a selected material in a region of a microchannel that is not influenced by an electric field. Other structures for inducing fluid flow in accordance with this invention include nanochannel bridging membranes and alternating current fluid pumping devices. Applications of the bridging membranes according to this invention include the separation of species from a sample material, valving of fluids in a microchannel network, mixing of different materials in a microchannel, and the pumping of fluids.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176319
- Patent Number(s):
- 7727363
- Application Number:
- 11/049,543
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07K - PEPTIDES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; 59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Jacobson, Stephen C., and Ramsey, J. Michael. Microfluidic device and methods for focusing fluid streams using electroosmotically induced pressures. United States: N. p., 2010.
Web.
Jacobson, Stephen C., & Ramsey, J. Michael. Microfluidic device and methods for focusing fluid streams using electroosmotically induced pressures. United States.
Jacobson, Stephen C., and Ramsey, J. Michael. Tue .
"Microfluidic device and methods for focusing fluid streams using electroosmotically induced pressures". United States. https://www.osti.gov/servlets/purl/1176319.
@article{osti_1176319,
title = {Microfluidic device and methods for focusing fluid streams using electroosmotically induced pressures},
author = {Jacobson, Stephen C. and Ramsey, J. Michael},
abstractNote = {A microfabricated device employing a bridging membrane and methods for electrokinetic transport of a liquid phase biological or chemical material using the same are described. The bridging membrane is deployed in or adjacent to a microchannel and permits either electric current flow or the transport of gas species, while inhibiting the bulk flow of material. The use of bridging membranes in accordance with this invention is applicable to electrokinetically inducing fluid flow to confine a selected material in a region of a microchannel that is not influenced by an electric field. Other structures for inducing fluid flow in accordance with this invention include nanochannel bridging membranes and alternating current fluid pumping devices. Applications of the bridging membranes according to this invention include the separation of species from a sample material, valving of fluids in a microchannel network, mixing of different materials in a microchannel, and the pumping of fluids.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2010},
month = {Tue Jun 01 00:00:00 EDT 2010}
}
Works referenced in this record:
Electroosmotically Induced Hydraulic Pumping on Microchips: Differential Ion Transport
journal, May 2000
- Culbertson, Christopher T.; Ramsey, Roswitha S.; Ramsey, J. Michael
- Analytical Chemistry, Vol. 72, Issue 10