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Parallel array of independent thermostats for column separations

United States Patent

6,929,731
August 16, 2005
View the Complete Patent at the US Patent & Trademark Office
A thermostat array including an array of two or more capillary columns (10) or two or more channels in a microfabricated device is disclosed. A heat conductive material (12) surrounded each individual column or channel in array, each individual column or channel being thermally insulated from every other individual column or channel. One or more independently controlled heating or cooling elements (14) is positioned adjacent to individual columns or channels within the heat conductive material, each heating or cooling element being connected to a source of heating or cooling, and one or more independently controlled temperature sensing elements (16) is positioned adjacent to the individual columns or channels within the heat conductive material. Each temperature sensing element is connected to a temperature controller.
Foret; Frantisek (Malden, MA), Karger; Barry L. (Newton, MA)
Northeastern University (Boston, MA)
09/ 979,622
20020157951
November 6, 2001
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT Part of the work leading to this invention was carried out with United States Government support provided under a grant from the Department of Energy, Grant No. DE-FG02-90ER60985. Therefore, the U.S. Government has certain rights in this invention.