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All-solid-state carbon nanotube torsional and tensile artificial muscles

Journal Article


Abstract


  • We report electrochemically powered, all-solid-state torsional and tensile artificial yarn muscles using a spinnable carbon nanotube (CNT) sheet that provides attractive performance. Large torsional muscle stroke (53°/mm) with minor hysteresis loop was obtained for a low applied voltage (5 V) without the use of a relatively complex three-electrode electromechanical setup, liquid electrolyte, or packaging. Useful tensile muscle strokes were obtained (1.3% at 2.5 V and 0.52% at 1 V) when lifting loads that are 25 times heavier than can be lifted by the same diameter human skeletal muscle. Also, the tensile actuator maintained its contraction following charging and subsequent disconnection from the power supply because of its own supercapacitor property at the same time. Possible eventual applications for the individual tensile and torsional muscles are in micromechanical devices, such as for controlling valves and stirring liquids in microfluidic circuits, and in medical catheters.

UOW Authors


  •   Lee, Jae Ah. (external author)
  •   Kim, Youn Tae. (external author)
  •   Spinks, Geoff M.
  •   Suh, Dongseok (external author)
  •   Lepro, Xavier (external author)
  •   Lima, Marcio Dias. (external author)
  •   Baughman, Ray H. (external author)
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2014

Citation


  • Lee, J. Ah., Kim, Y. Tae., Spinks, G. M., Suh, D., Lepro, X., Lima, M. D., Baughman, R. H. & Kim, S. Jeong. (2014). All-solid-state carbon nanotube torsional and tensile artificial muscles. Nano Letters: a journal dedicated to nanoscience and nanotechnology, 14 (5), 2664-2669.

Scopus Eid


  • 2-s2.0-84900497446

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1081

Number Of Pages


  • 5

Start Page


  • 2664

End Page


  • 2669

Volume


  • 14

Issue


  • 5

Abstract


  • We report electrochemically powered, all-solid-state torsional and tensile artificial yarn muscles using a spinnable carbon nanotube (CNT) sheet that provides attractive performance. Large torsional muscle stroke (53°/mm) with minor hysteresis loop was obtained for a low applied voltage (5 V) without the use of a relatively complex three-electrode electromechanical setup, liquid electrolyte, or packaging. Useful tensile muscle strokes were obtained (1.3% at 2.5 V and 0.52% at 1 V) when lifting loads that are 25 times heavier than can be lifted by the same diameter human skeletal muscle. Also, the tensile actuator maintained its contraction following charging and subsequent disconnection from the power supply because of its own supercapacitor property at the same time. Possible eventual applications for the individual tensile and torsional muscles are in micromechanical devices, such as for controlling valves and stirring liquids in microfluidic circuits, and in medical catheters.

UOW Authors


  •   Lee, Jae Ah. (external author)
  •   Kim, Youn Tae. (external author)
  •   Spinks, Geoff M.
  •   Suh, Dongseok (external author)
  •   Lepro, Xavier (external author)
  •   Lima, Marcio Dias. (external author)
  •   Baughman, Ray H. (external author)
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2014

Citation


  • Lee, J. Ah., Kim, Y. Tae., Spinks, G. M., Suh, D., Lepro, X., Lima, M. D., Baughman, R. H. & Kim, S. Jeong. (2014). All-solid-state carbon nanotube torsional and tensile artificial muscles. Nano Letters: a journal dedicated to nanoscience and nanotechnology, 14 (5), 2664-2669.

Scopus Eid


  • 2-s2.0-84900497446

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1081

Number Of Pages


  • 5

Start Page


  • 2664

End Page


  • 2669

Volume


  • 14

Issue


  • 5