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Chem Commun (Camb). 2005 Mar 21;(11):1375-83. Epub 2005 Feb 10.

"Smart dust": nanostructured devices in a grain of sand.

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1
Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, m/c 0358, La Jolla, CA 92093-0358, USA. msailor@ucsd.edu

Abstract

The term "smart dust" originally referred to miniature wireless semiconductor devices made using fabrication techniques derived from the microelectronics industry. These devices incorporate sensing, computing and communications in a centimetre-sized package. This article discusses the construction of much smaller silicon-based systems, using the tools of nanotechnology. The synthesis of millimetre- to micron-sized functional photonic crystals made from porous silicon is described. It is shown how the various optical, chemical, and mechanical properties can be harnessed to perform sensing, signal processing, communication and motive functions.

PMID:
15756310
DOI:
10.1039/b417554a
[Indexed for MEDLINE]
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