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August 28th, 2006

Carbon-nanotube 'strings' may ID single molecules

Abstract:
Nanoscale "guitar strings" that vibrate at more than one billion times per second could detect and identify individual molecules. The device may even let researchers study the quantum behaviour of molecules, and possibly even viruses.

A group led by Alex Zettl, a condensed matter physicist at the University of California, Berkeley, US, used electron-beam lithography and reactive ion etching to create a trench 300 nanometres across with electrodes on either side and a chargeable plate at the bottom.

Source:
newscientisttech.com

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