发明名称 |
Surface modification of lamellar particles |
摘要 |
Lamellar particles are provided comprising a biodegradable and biocompatible polymer and carrying a cationic charge on their surface. These particles are prepared by mixing a preformed negatively charged lamellar particle with a positively charged material. Compositions using these particles may include genetic material or antigens, for example, and may be used as a drug delivery system, such as a sustained release system.
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申请公布号 |
US2002068091(A1) |
申请公布日期 |
2002.06.06 |
申请号 |
US20010948319 |
申请日期 |
2001.09.06 |
申请人 |
WEST PHARMACEUTICAL SERVICES DRUG DELIVERY & CLINICAL RESEARCH CENTRE LIMITED |
发明人 |
DAVIS STANLEY STEWART;WELLS ANDREW |
分类号 |
A61K47/48;(IPC1-7):A61K48/00;A61K9/14;A61K9/16;A61K9/50;B01J13/04 |
主分类号 |
A61K47/48 |
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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