The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2011
Filed:
Oct. 19, 2007
Stephen C. Jacobson, Knoxville, TN (US);
J. Michael Ramsey, Knoxville, TN (US);
Christopher T. Culbertson, Oak Ridge, TN (US);
William B. Whitten, Lancing, TN (US);
Robert S. Foote, Oak Ridge, TN (US);
Stephen C. Jacobson, Knoxville, TN (US);
J. Michael Ramsey, Knoxville, TN (US);
Christopher T. Culbertson, Oak Ridge, TN (US);
William B. Whitten, Lancing, TN (US);
Robert S. Foote, Oak Ridge, TN (US);
UT-Battelle, LLC, Wilmington, DE (US);
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 ionic 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 a variety of processes, including electrokinetically induced pressure flow in a region of a microchannel that is not influenced by an electric field, sample concentration enhancement and injection, as well as improving the analysis of materials where it is desired to eliminate electrophoretic bias. Other 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.