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Nano Electro-Mechanical Systems (NEMS) are tiny
machines built at the nanometer scale. Current
NEMS applications are simple machines, such as
the tiny cantilever shown at the right. An electrical circuit measures the deflection
of the lever. A larger version of this device,
with dimensions at the micrometer or millimeter
scale, is commonly used as an airbag sensor in
automobiles. A sudden stop causes a strong
deflection of the lever, which signals that
the airbags should be deployed. At the nano
scale, such a lever is sensitive enough to
measure the weight of individual atoms or
molecules resting upon it.
Learn more about NEMS from the
resources available on this site, listed below.
Introduction to Carbon Nanotube Electronics
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12 Oct 2005 | Learning Modules | Contributor(s): Susan Sinnott
Carbon nanotubes (CNT) have interesting, structure-dependent electronic properties. In particular, CNTs can be a metallic or semiconducting depending on the way in which the carbon atoms are arranged …
Introduction to Molecular Conduction
21 Jul 2005 | Learning Modules | Contributor(s): Ferdows Zahid, Magnus Paulsson, Avik Ghosh, Supriyo Datta
A scanning probe microscope brushes the tips of molecules rising up from a gold substrate. After making contact, the probe measures a very strange current-voltage relationship--linear portions …
Introduction to Nanofluidics
26 May 2005 | Learning Modules | Contributor(s): Susan Sinnott
The purpose of this learning module is to introduce students to some fundamental concepts in Nanofluidics. The module includes a pretest (without keys), a presentation, reading materials on …
Introduction to the CENEMS Simulation Tool
15 Apr 2006 | Learning Modules | Contributor(s): Gang Li, Narayan Aluru
This learning module is an introduction to the CENEMS simulation tool. Nanoelectromechanical systems (NEMS) often contains multiple nanoscale conductors. CENEMS is a user-friendly 2-D classical …
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