Title:
MICROFABRICATION OF POLYMER MICROPARTICLES
Document Type and Number:
WIPO Patent Application WO2004096896
Kind Code:
A3
Abstract:
A system and method for creating polymer microparticles for use in drug delivery and other applications. The components of the exemplary system include a micro-stamp having micro-contours or micro-structures, a substrate, and a sacrificial layer of material coating the slide. The method includes the steps of coating the face of stamp with a thin layer of polymer to cover the micro-structures of the stamp, contacting the coated face of the stamp with the coated substrate to transfer polymer from the micro-structures of the stamp to the slide to create free-standing polymer microparticles, and dissolving the sacrificial layer covering the substrate to release the microparticles into solution. The microparticles fabricated by this method typically exhibit well-defined geometries that correspond to the micro-structures of the stamp.
Inventors:
HANSFORD DEREK J (US)
JINGJIAO GUAN (US)
JINGJIAO GUAN (US)
Application Number:
PCT/US2003/028091
Publication Date:
March 10, 2005
Filing Date:
September 05, 2003
Export Citation:
Assignee:
HANSFORD DEREK J (US)
JINGJIAO GUAN (US)
JINGJIAO GUAN (US)
International Classes:
A61K9/16; A61K9/70; (IPC1-7): A61K9/00; A61K9/14; B29D7/01; B29D31/00
Foreign References:
| US6355270B1 | 2002-03-12 |
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