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Chemically Controlled Miniature Devices: Microchemomechanical Systems (Adv. Funct. Mater. 13/2011)
Author(s) -
Randhawa Jatinder S.,
Laflin Kate E.,
Seelam Natasha,
Gracias David H.
Publication year - 2011
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201190053
Subject(s) - materials science , wireless , nanotechnology , electricity , optoelectronics , computer science , electrical engineering , telecommunications , engineering
A new class of miniature micromechanical devices that do not utilize electricity but respond to different chemical environments are reviewed by David H. Gracias and coworkers on page 2395 . The wireless device shown in the image, for example, opens/closes in response to surface oxidation and reduction. The intellectual motivation to pursue chemically stimulated devices is their wide occurrence in nature. From a practical standpoint, since chemicals can readily diffuse and produce changes over large distances, this approach is especially attractive for very small wireless and autonomous devices. (Image credit: A. Zarafshar and J. Randhawa)