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Inorganic nanotubes and electro-fluidic devices fabricated therefrom

United States Patent

March 1, 2011
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Nanofluidic devices incorporating inorganic nanotubes fluidly coupled to channels or nanopores for supplying a fluid containing chemical or bio-chemical species are described. In one aspect, two channels are fluidly interconnected with a nanotube. Electrodes on opposing sides of the nanotube establish electrical contact with the fluid therein. A bias current is passed between the electrodes through the fluid, and current changes are detected to ascertain the passage of select molecules, such as DNA, through the nanotube. In another aspect, a gate electrode is located proximal the nanotube between the two electrodes thus forming a nanofluidic transistor. The voltage applied to the gate controls the passage of ionic species through the nanotube selected as either or both ionic polarities. In either of these aspects the nanotube can be modified, or functionalized, to control the selectivity of detection or passage.
Yang; Peidong (Kensington, CA), Majumdar; Arunava (Orinda, CA), Fan; Rong (Pasadena, CA), Karnik; Rohit (Cambridge, MA)
The Regents of the University of California (Oakland, CA)
12/ 335,430
December 15, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Grant No. CA103071, awarded by the National Institutes of Health; and Grant No. DE-AC02-05CH11231, awarded by the Department of Energy. The Government has certain rights in this invention.