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.

The American Chemical Society also maintains a list of the most-accessed articles from some of its journals, including Nano Letters.

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

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