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There are two approaches most researchers accept as standard paths to NEMS. The top-down approach can be summarized as “a set of tools designed to build a smaller set of tools”. For example, a millimeter sized factory that builds micrometer sized factories which in turn can build nanometer sized devices. The other approach is the bottom-up approach, and can be thought of as putting together single atoms or molecules until a desired level of complexity and functionality has been achieved in a device. Such an approach may utilize molecular self-assembly or mimic molecular biology systems.
A combination of these approaches may also be used, in which nanoscale molecules are integrated into a top-down framework. One such example is the carbon nanotube nanomotor.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Nanoelectromechanical_systems". A list of authors is available in Wikipedia.|