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All-electrical switching and control mechanism for actomyosin-powered nanoactuators

Appl. Phys. Lett. 85, 1060 (2004); doi:10.1063/1.1777815

Issue Date: 9 August 2004

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Goran Mihajlovic
MARTECH and Department of Physics, Florida State University, Tallahassee, Florida 32306

Nicolas M. Brunet
Department of Biological Science and Program in Molecular Biophysics, Florida State University, Tallahassee, Florida 32306-4370

Jelena Trbovic, Peng Xiong, and Stephan von Molnár
MARTECH and Department of Physics, Florida State University, Tallahassee, Florida 32306

P. Bryant Chase
Department of Biological Science and Program in Molecular Biophysics, Florida State University, Tallahassee, Florida 32306-4370
A fast all-electrical activation and control mechanism for biomolecular motor-powered nanoactuators has been developed. Rapid and reversible on–off control of actomyosin biomolecular motors was experimentally demonstrated using in vitro motility assays. The results show that the motility of the actin filaments can be cycled repeatedly by electrically controlled thermal activation in the temperature range from 10°C to 50°C without functional loss. The fast response of the filaments upon rapid temperature switching suggests that thermal activation provides an effective method for turning actomyosin-powered nanoactuators on and off. ©2004 American Institute of Physics
History: Received 15 March 2004; accepted 8 June 2004
Permalink: http://link.aip.org/link/?APPLAB/85/1060/1
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KEYWORDS and PACS

Keywords
PACS
  • 85.85.+j
    Micro- and nano-electromechanical systems (MEMS/NEMS) and devices
  • 85.65.+h
    Molecular electronic devices
  • YEAR: 2004

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ISSN:
0003-6951 (print)   1077-3118 (online)
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