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Fluidic nanotubes and devices

United States Patent

April 8, 2008
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Fluidic nanotube devices are described in which a hydrophilic, non-carbon nanotube, has its ends fluidly coupled to reservoirs. Source and drain contacts are connected to opposing ends of the nanotube, or within each reservoir near the opening of the nanotube. The passage of molecular species can be sensed by measuring current flow (source-drain, ionic, or combination). The tube interior can be functionalized by joining binding molecules so that different molecular species can be sensed by detecting current changes. The nanotube may be a semiconductor, wherein a tubular transistor is formed. A gate electrode can be attached between source and drain to control current flow and ionic flow. By way of example an electrophoretic array embodiment is described, integrating MEMs switches. A variety of applications are described, such as: nanopores, nanocapillary devices, nanoelectrophoretic, DNA sequence detectors, immunosensors, thermoelectric devices, photonic devices, nanoscale fluidic bioseparators, imaging devices, and so forth.
Yang; Peidong (Berkeley, CA), He; Rongrui (El Cerrito, CA), Goldberger; Joshua (Berkeley, CA), Fan; Rong (El Cerrito, CA), Wu; Yiying (Albany, CA), Li; Deyu (Albany, CA), Majumdar; Arun (Orinda, CA)
The Regents of the University of California (Oakland, CA)
10/ 822,148
April 8, 2004
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract No. DE-AC03-76SF00098, awarded by the Department of Energy and Grant No. DMR-0092086, awarded by the National Science Foundation. The Government has certain rights in this invention.