G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/30 (2006.01) B01D 57/02 (2006.01) B03C 5/02 (2006.01) G01N 27/447 (2006.01)
Patent
CA 2343873
To provide an electrode for a dielectrophoretic apparatus in which a background detected by reflecting an excited light on an electrode present under the substance (molecule) is reduced and an S/N ratio is enhanced. Also, there is provided an dielectrophoretic apparatus, in an apparatus in which a liquid containing substances to be separated is present in a non-uniform electric field formed by a dielectrophoretic electrode, and separation is carried out by a dielectrophoretic force exerting on the substances, wherein the col letting ability of substances is enhanced. The present invention is characterized in that a vacant space is provided in an electrode whereby substances subjected to influence by a negative dielectrophoretic force can be concentrated in said vacant space of an electrode, or above or below portion of the space. The present invention is further characterized in that in a dielectrophoretic apparatus provided with an electrode on a base plate, a lower level place than the electrode level is formed between (or among) the electrodes to realize an increase of a non-uniform electric field region, thereby enhancing the collecting ability.
Kawabata Tomohisa
Washizu Masao
Riches Mckenzie & Herbert Llp
Wako Pure Chemical Industries Ltd.
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