The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2010
Filed:
Aug. 25, 2005
Mihai A. Buretea, San Francisco, CA (US);
Joel Gamoras, Vallejo, CA (US);
Erik C. Scher, San Francisco, CA (US);
Jeffery A. Whiteford, Belmont, CA (US);
Mihai A. Buretea, San Francisco, CA (US);
Joel Gamoras, Vallejo, CA (US);
Erik C. Scher, San Francisco, CA (US);
Jeffery A. Whiteford, Belmont, CA (US);
Nanosys, Inc., Palo Alto, CA (US);
Abstract
The present invention relates to a method of processing nanocrystals. The method comprises providing a mixture comprising nanocrystals, contaminants and a first solvent in which the nanocrystals are soluble, and using chromatography to reduce the amount of contaminants in the mixture. The method optionally comprises isolating the nanocrystals after chromatography. The method allows for the production of nanocrystal compositions having a total amount of surfactant associated therewith, the amount of surfactant comprising an amount of bound surfactant and an amount of free surfactant in the solvent, the amount of free surfactant being less than about 1% of the total amount of surfactant in the solvent. The present invention, accordingly, also relates to such compositions and corresponding composites of nanocrystals in organic polymer matrices.