Amazing nanotech in Boston: Weighing DNA, digital heat flow, electromechanical butterfly images

How does a scientist weigh something as small and light as a DNA strand? What seldom used electro-mechanical property in biological tissue has enabled some of the best-ever submicroscopic images of butterfly wings? How does heat flow at the quantum scale?

These and other questions will be addressed on Monday, October 31, 2005, from 1-2 PM, at a press luncheon for the 52nd AVS International Symposium & Exhibition in Boston. The luncheon will take place in the Exhibitor Workshop area of Exhibit Hall D of the Hynes Convention Center (900 Boylston Street). The entire symposium takes place between October 30-November 4, 2005. The meeting will feature over 1300 papers and posters, with at least 3,000 expected attendees.

Reporters interested in attending the luncheon should fill out the registration form at http://www2.avs.org/symposium/boston/pressroom/regform.html . A web pressroom on the meeting is located at http://www2.avs.org/symposium/boston/pressroom.html

The following is a summary of some of the results to be discussed at the luncheon:

Speaker: Harold Craighead, Cornell University

Nanoelectromechanical systems (NEMS) technology---electronic and mechanical devices with dimensions at the nanometer scale---is especially valuable for sensing single molecules. Using small NEMS detectors makes analysis or detection faster, and requires only tiny amounts of sample material to make good measurements. But the main motivation is NEMS's much greater sensitivity in locating and identifying single biomolecules by measuring their masses. A typical NEMS sensor consists of an oscillating slab so small in size and mass that even if a single DNA molecule were to alight on it, the slab's resonant frequency (the vib

Contact: Ben Stein
American Institute of Physics

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