发明名称 |
SUPERCRITICAL FLUID TREATMENT OF HIGH MOLECULAR WEIGHT BIOPOLYMERS |
摘要 |
Micro- and nano-sized particles, agglomerates and fibers are generated from high molecular weight water-soluble biopolymers applying supercritical fluid technology. A method of producing micro- or nanoparticles from an aqueous solution of a high molecular weight biopolymer includes the step of spraying the aqueous solution together with a mixture of a compressible gas and a water-soluble co-solvent/antisolvent into a pressurized chamber. The method may be adapted to impregnate the micro- or nanoparticles with a bioactive material. A method for microencapsulating a bioactive material with a biopolymer is also provided. |
申请公布号 |
EP2553000(A1) |
申请公布日期 |
2013.02.06 |
申请号 |
EP20110761878 |
申请日期 |
2011.04.01 |
申请人 |
THE GOVERNORS OF THE UNIVERSITY OF ALBERTA |
发明人 |
TEMELLI, FERAL;SEIFRIED, BERNHARD |
分类号 |
C08J3/12;A61K9/50;A61K47/36;C08B37/00 |
主分类号 |
C08J3/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|