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Carbon Nanotubes
Submitted on 01-NOV-06
Contributed by Meyya Meyyappan

A carbon nanotube can be used as a tip in an atomic force microscope (AFM). Such a tip in an AFM can be used to create nanoscale patterns i.e. nanolithograpghy or to etch material away from a surface in the fabrication of semiconductor chips(i.e. the tip acts like a " nanotweezer " to remove atoms from the surface)....

Introduction to Nanotechnology
Submitted on 01-NOV-06
Contributed by Meyya Meyyappan

Nanotechnology deals with creation of USEFUL/FUNCTIONAL materials, devices, systems, etc. through the control of matter at the nanometer length scale, say 1-100 nm at least in one principal direction. The terms 'useful and functional' are deliberately added here to the definition by the U.S. National Nanotechnology Initiative (NNI) and emphasized to distinguish from the science fiction scenarios popularized by novels and press articles......