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:
Jul. 21, 2009
Filed:
Oct. 02, 2002
Jennifer Cha, Berkeley, CA (US);
Timothy J. Deming, Summerland, CA (US);
Galen D. Stucky, Goleta, CA (US);
Michael Wong, Houston, TX (US);
Henrik Birkedal, Goleta, CA (US);
Michael H. Bartl, Santa Barbara, CA (US);
Jan L. Sumerel, Goleta, CA (US);
Jennifer Cha, Berkeley, CA (US);
Timothy J. Deming, Summerland, CA (US);
Galen D. Stucky, Goleta, CA (US);
Michael Wong, Houston, TX (US);
Henrik Birkedal, Goleta, CA (US);
Michael H. Bartl, Santa Barbara, CA (US);
Jan L. Sumerel, Goleta, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A design strategy for constructing hierarchically structured materials using nanoparticles and synthetic biopolymers has been developed. Block copolypeptides or homopolymer polyelectrolytes are used as structure-directing agents to arrange nanoparticles (composed of metals, metal non-oxides, metal oxides, or organics) into unusual microstructures, such as spheres, 'apples' and 'cups.' Hollow spheres can be made wherein nanoparticles of one composition are spatially oriented completely interior or exterior to nanoparticles of a second composition. These aggregates contain nanoparticles only in the shell walls, and maintain their hollowness upon calcination. These shapes can also be fabricated into films. These robust materials are anticipated to have great promise in applications that require surface catalysis, magnetic/electronic/optic properties, transport capabilities, and combinations thereof, such as drug delivery, packaging, catalysis, and sensors.