Nano-sized particles, processes of making, compositions and uses thereof
Abstract
The present invention describes methods for preparing high quality nanoparticles, i.e., metal oxide based nanoparticles of uniform size and monodispersity. The nanoparticles advantageously comprise organic alkyl chain capping groups and are stable in air and in nonpolar solvents. The methods of the invention provide a simple and reproducible procedure for forming transition metal oxide nanocrystals, with yields over 80%. The highly crystalline and monodisperse nanocrystals are obtained directly without further size selection; particle size can be easily and fractionally increased by the methods. The resulting nanoparticles can exhibit magnetic and/or optical properties. These properties result from the methods used to prepare them. Also advantageously, the nanoparticles of this invention are well suited for use in a variety of industrial applications, including cosmetic and pharmaceutical formulations and compositions.
- Inventors:
-
- New York, NY
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Columbia Univ., New York, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1042634
- Patent Number(s):
- 8182786
- Application Number:
- US patent applicaiton 11/451,251
- Assignee:
- The Trustees of Columbia University in the City of New York (New York, NY)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61K - PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61Q - SPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
- DOE Contract Number:
- FG02-03ER15463
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
O'Brien, Stephen, and Yin, Ming. Nano-sized particles, processes of making, compositions and uses thereof. United States: N. p., 2012.
Web.
O'Brien, Stephen, & Yin, Ming. Nano-sized particles, processes of making, compositions and uses thereof. United States.
O'Brien, Stephen, and Yin, Ming. Tue .
"Nano-sized particles, processes of making, compositions and uses thereof". United States. https://www.osti.gov/servlets/purl/1042634.
@article{osti_1042634,
title = {Nano-sized particles, processes of making, compositions and uses thereof},
author = {O'Brien, Stephen and Yin, Ming},
abstractNote = {The present invention describes methods for preparing high quality nanoparticles, i.e., metal oxide based nanoparticles of uniform size and monodispersity. The nanoparticles advantageously comprise organic alkyl chain capping groups and are stable in air and in nonpolar solvents. The methods of the invention provide a simple and reproducible procedure for forming transition metal oxide nanocrystals, with yields over 80%. The highly crystalline and monodisperse nanocrystals are obtained directly without further size selection; particle size can be easily and fractionally increased by the methods. The resulting nanoparticles can exhibit magnetic and/or optical properties. These properties result from the methods used to prepare them. Also advantageously, the nanoparticles of this invention are well suited for use in a variety of industrial applications, including cosmetic and pharmaceutical formulations and compositions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {5}
}
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