System and method for the manipulation, classification sorting, purification, placement, and alignment of nano fibers using electrostatic forces and electrographic techniques
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United States of America Patent
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Nov 29, 2011
Grant Date -
Nov 20, 2008
app pub date -
Jun 13, 2006
filing date -
Jun 13, 2005
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Abstract
A system and method for the manipulation of nanofibers using electrostatic forces. The nanofibers may be provided in a liquid medium, and the nanofibers may be nano-scale (i.e. measured in nanometers). The process is sensitive to the charge properties of the nanofibers (charge could be inherent to material or the charge can be induced into the material through electrochemical means), and therefore may be used to sort or classify particles. The nanofibers may also be aligned according to electrical fields, and thus anisotropic effect exploited. Devices produced may be conductors, semiconductors, active electronic devices, electron emitters, and the like. The nanofibers may be modified after deposition, for example to remove charge-influencing coatings to further enhance their performance, to enhance their adhesion to polymers for use as composite materials or result in the adhesion of the material at the proper location on a variety of different surfaces.
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