Recent Important Achievements in Nanotechnology

1. "Dielectrophoresis Field Flow Fractionation of Single-Walled Carbon Nanotubes," Journal of the American Chemical Society 128(26), 8396-8397 (2006).

Summary: An advance in the separation of single wall nanotubes by diameter, which is coupled to chirality. This represents a step forward on Difficult Problem No. 5.

2. "Ultrahigh-Density Nanowire Lattices and Circuits," Science 300, 112-115 (2003).

Summary: A new technique for imprinting very long, very narrow diameter (down to 5 nm) nanowires in large, ultra-dense electrically addressable arrays. This represents steps forward on Difficult Problems No. 1 and 3.

3. "Detection, Stimulation, and Inhibition of Neuronal Signals with High-Density Nanowire Transistor Arrays," Science 313, 1100-1104 (2006).

Summary: Demonstration of a functional prototype electrical interface that uses nanowires to stimulate , inhibit, and monitor electrical signals from an individual nerve cell.

4. "Crossbar Nanocomputers," Scientific American, 72-80 (November 2005).

Summary: A clearly written and easily accessible review of some recent advances in the design, fabrication, and demonstration of integrated nanoelectronic computer systems. The research described in this article is a step forward on Difficult Problem No. 3.

5. "Control of Nanoparticles with Arbitrary Two-Dimensional Force Fields," Physical Review Letters 94, 118102 (2005).

Summary: Invention and demonstration of a novel technique for arbitarily controlling the motion of nanoscale particles (biomolecules as well as inorganic nanoparticles) in a solution. This represents a step forward on Difficult Problem No. 1.

This list is not comprehensive, and will be updated as new discoveries and advances are made.

See also the Nano News for more information on recent events and discoveries in the area of nanotechnology.

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