发明名称 |
Encapsulated active material system |
摘要 |
Capsules are formed herein a liquified core while avoiding capsule core gelation 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.
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申请公布号 |
US4749620(A) |
申请公布日期 |
1988.06.07 |
申请号 |
US19850748364 |
申请日期 |
1985.09.18 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
RHA, CHOKYUN;RODRIGUEZ-SANCHEZ, DOLORES |
分类号 |
A61K9/16;A61K9/50;A61K9/62;(IPC1-7):A61K9/62;A61K9/66;A61K37/00;B01J13/02 |
主分类号 |
A61K9/16 |
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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