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    • 3. 发明申请
    • Hazard-free microencapsulation for structurally delicate agents, an application of stable aqueous-aqueous emulsion
    • 用于结构脆弱剂的无害微囊化,应用稳定的水性乳液
    • US20060121121A1
    • 2006-06-08
    • US10517122
    • 2003-06-03
    • Tuo JinHua ZhuJiahao Zhu
    • Tuo JinHua ZhuJiahao Zhu
    • A61K9/16B29C39/10
    • A61K9/0043A61K9/0024A61K9/0073A61K9/1075A61K9/113A61K9/1652A61K9/19A61K9/5031A61K9/5036A61K9/5073A61K38/00
    • This invention provides method for sustained release delivery of structurally delicate agents such as proteins and peptides. Using unique emulsion system (Stable polymer aqueous-aqueous emulsion), proteins and peptides can be microencapsulated in polysacchride glassy particles under a condition free of any chemical or physical hazard such as organic solvents, strong interfacial tension, strong shears, elevated temperature, large amount of surfactants, and cross-linking agents. Proteins loaded in these glassy particles showed strong resistance to organic solvents, prolonged activity in hydrated state, and an excellent sustained release profile with minimal burst and incomplete release when being further loaded in degradable polymer microspheres. This invention provides a simple yet effective approach to address all the technical challenges raised in sustained release delivery of proteins.
    • 本发明提供结构上精细的试剂例如蛋白质和肽的持续释放递送方法。 使用独特的乳液系统(稳定的聚合物水性乳液),蛋白质和肽可以在没有任何化学或物理危害的条件下,在有机溶剂,强界面张力,强剪切,高温,大量的条件下,微囊化在多糖玻璃状颗粒中 的表面活性剂和交联剂。 装载在这些玻璃状颗粒中的蛋白质显示出对有机溶剂的强烈抗性,水合状态下的延长的活性,以及​​当进一步负载在可降解聚合物微球体中时具有最小的突发和不完全释放的优异的持续释放特征。 本发明提供了一种简单但有效的方法来解决蛋白质持续释放递送中提出的所有技术挑战。