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|United States Patent||5,858,192|
|Becker , et al.||January 12, 1999|
The present disclosure is directed to a novel apparatus and novel methods for the separation, characterization, and manipulation of matter. In particular, the invention combines the use of frequency-dependent dielectric and conductive properties of particulate matter and solubilized matter with the properties of a suspending medium to discriminate and separate such matter. The apparatus includes a chamber having at least one spiral electrode element. Matter is separated in the chamber by a dielectrophoretic (DEP) force caused by the energized electrode or electrodes.
|Inventors:||Becker; Frederick F. (Houston, TX), Gascoyne; Peter R. C. (Bellaire, TX), Huang; Ying (Houston, TX), Wang; Xiao-Bo (Houston, TX)|
Board of Regents, The University of Texas System
|Filed:||October 18, 1996|
|Current U.S. Class:||204/547 ; 204/280; 204/643; 436/149; 436/806|
|Current International Class:||B01J 19/00 (20060101); G01N 30/00 (20060101); B03C 5/00 (20060101); B03C 5/02 (20060101); G01N 027/26 (); C25B 011/02 ()|
|Field of Search:||204/547,670 7/400,280,643 436/149,806|
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|4440638||April 1984||Judy et al.|
|5344535||September 1994||Betts et al.|
|5454472||October 1995||Benecke et al.|
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|474723 A||Jun., 1975||SU|
|WO 91/11262||Aug., 1991||WO|
|WO 93/20927||Oct., 1993||WO|
|WO 94/16821||Aug., 1994||WO|
|WO 94/22583||Oct., 1994||WO|
|WO 96/31282||Oct., 1996||WO|
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