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Chemomechanical Actuators: Reversible Actuation of Microstructures by Surface-Chemical Modification of Thin-Film Bilayers (Adv. Mater. 3/2010)

  1. Jatinder S. Randhawa2,
  2. Michael D. Keung2,
  3. Pawan Tyagi2,
  4. David H. Gracias1,2,*

Article first published online: 13 JAN 2010

DOI: 10.1002/adma.201090000

Issue

Advanced Materials

Advanced Materials

Volume 22, Issue 3, January 19, 2010

Additional Information

How to Cite

Randhawa, J. S., Keung, M. D., Tyagi, P. and Gracias, D. H. (2010), Chemomechanical Actuators: Reversible Actuation of Microstructures by Surface-Chemical Modification of Thin-Film Bilayers (Adv. Mater. 3/2010). Adv. Mater., 22: n/a. doi: 10.1002/adma.201090000

Author Information

  1. 1

    Department of Chemistry Johns Hopkins University Baltimore, MD 21218 (USA)

  2. 2

    Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)

*Department of Chemistry Johns Hopkins University Baltimore, MD 21218 (USA).

Publication History

  1. Issue published online: 13 JAN 2010
  2. Article first published online: 13 JAN 2010

Funded by

  • National Science Foundation. Grant Numbers: DMR 05-20491, CMMI-0448816
  • JHU-APL partnership fund
  • NIH Roadmap for Medical Research. Grant Number: 1-DP2-OD004346-01

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Keywords:

  • actuator;
  • lithography;
  • oxidation-reduction;
  • self-assembly;
  • thin films
Thumbnail image of graphical abstract

Microstructures such as grippers and cubic containers reversibly open and close when exposed to chemicals without the need for any wires, tethers, or batteries, as demonstrated by David Gracias and co-workers on p. 407. The cover shows bidirectional microgrippers with selected digits closing and opening spontaneously in response to surface oxidation and reduction of copper films within thin-film bilayer hinges. Image created by Martin Rietveld and Jatinder Randhawa.

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