发明名称 |
IMPROVEMENTS RELATING TO ENCAPSULATION OF BIOACTIVE AGENTS |
摘要 |
Bioactive agent is encapsulated in a polymer microparticle in a (water-in-oil)- in-water emulsion-based method, and using a solvent that comprises ethyl acetate. Also described are microparticles comprising low inherent viscosity (i.v.) PLG, some with i.v. less than 0.5 dl/g, and methods for their preparation. DNA release is modified through use of low i.v. PLG. A particle production method for scale-up uses a blender that avoids excessive shear damage to DNA being encapsulated.
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申请公布号 |
CA2331465(C) |
申请公布日期 |
2008.08.26 |
申请号 |
CA19992331465 |
申请日期 |
1999.05.07 |
申请人 |
MICROBIOLOGICAL RESEARCH AUTHORITY |
发明人 |
JONES, DAVID HUGH;FARRAR, GRAHAM HENRY;TINSLEY-BOWN, ANNE MARGARET |
分类号 |
A61J1/05;A61K9/16;A61K9/00;A61K9/113;A61K9/50;A61K9/51;A61K39/00;A61K47/34;A61K48/00;B01J13/00;C12N15/10;C12N15/87 |
主分类号 |
A61J1/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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