Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2007-03-02
2011-11-15
Hendrickson, Stuart (Department: 1736)
Liquid purification or separation
Processes
Chemical treatment
C423S447100, C423S461000, C977S745000, C977S746000, C977S845000, C977S847000, C210S639000, C204S557000
Reexamination Certificate
active
08057686
ABSTRACT:
A nanotube separation method includes depositing a tag on a nanotube in a nanotube mixture. The nanotube has a defect and the tag deposits at the defect where a deposition rate is greater than on another nanotube in the mixture lacking the defect. The method includes removing the tagged nanotube from the mixture by using the tag. As one option, the tag may contain a ferromagnetic material and the removing may include applying a magnetic field. As another option, the tag may contain an ionic material and the removing may include applying an electric field. As a further option, the tag may contain an atom having an atomic mass greater than the atomic mass of carbon and the removing may include applying a centrifugal force to the nanotube mixture. Any two or more of the indicated removal techniques may be combined.
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Hendrickson Stuart
Micro)n Technology, Inc.
Rump Richard M
Wells St. John P.S.
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