Thermophoretic fractionalization of small particles
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United States of America Patent
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Issued Date -
Apr 9, 2009
app pub date -
Oct 9, 2007
filing date -
Oct 9, 2007
priority date (Note) -
Abandoned
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Abstract
Described is a method for fractionalizing nanoparticles according to the conductivity of the particle, thus enabling the production of large numbers of particles with uniform conductivity. The method is based on a modified thermophoresis process wherein a temperature gradient is produced in a mixture of particles and the most conductive particles are selectively deposited on a warm surface. In contrast to conventional thermophoresis methods, the temperature gradient that drives the fractionalization process is produced using a light source.
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