发明名称 |
Process for encapsulation and encapsulated active material system(. |
摘要 |
<p>Capsules are formed having a liquifield core while avoiding capsule core gelatin by adding drops of a solution of either an anionic polymer composition or a cationic polymer composition to a solution of an ionic polymer of opposite charge. The drops contain an active ingredient such as a cell or microorganism capable of producing a biologically active product or can contain a biological or chemical composition. The interface of the ionic polymers form a permeable membrane surrounding the liquid drops.</p> |
申请公布号 |
EP0152898(A2) |
申请公布日期 |
1985.08.28 |
申请号 |
EP19850101490 |
申请日期 |
1985.02.12 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
RHA, CHOKYUN;RODRIGUEZ-SANCHEZ, DOLORES |
分类号 |
A61J3/07;A61K9/16;A61K9/48;A61K9/50;A61K35/12;A61K35/26;A61K35/74;A61K38/22;(IPC1-7):A61K9/50 |
主分类号 |
A61J3/07 |
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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