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Nano Lett. 2005 Sep;5(9):1730-3.

Nanocrystal-powered nanomotor.

Author information

1
Department of Physics, Center of Integrated Nanomechanical Systems, University of California, Berkeley, California 94720, USA.

Abstract

We have constructed and operated a nanoscale linear motor powered by a single metal nanocrystal ram sandwiched between mechanical lever arms. Low-level electrical voltages applied to the carbon nanotube lever arms cause the nanocrystal to grow or shrink in a controlled manner. The length of the ram is adjustable from 0 to more than 150 nm, with extension speeds exceeding 1900 nm/s. The thermodynamic principles governing motor operation resemble those driving frost heave, a natural solid-state linear motor.

PMID:
16159214
DOI:
10.1021/nl0510659

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