-
公开(公告)号:US4927637A
公开(公告)日:1990-05-22
申请号:US297946
申请日:1989-01-17
IPC分类号: A61K9/127
CPC分类号: A61K9/127 , A61K9/1277
摘要: A suspension of heterogeneous size liposomes is passed through a polymer filter having a web-like construction providing a network of interconnected, tortuous-path capillary pores, and a membrane thickness of at least about 100 microns. The processed liposomes have a selected average size less than about 0.4 microns, and a narrow size distribution.
摘要翻译: 异种尺寸脂质体的悬浮液通过具有网状结构的聚合物过滤器,其提供相互连接的曲折路径毛细孔的网络,以及至少约100微米的膜厚度。 经处理的脂质体具有小于约0.4微米的选择的平均尺寸和窄的尺寸分布。
-
公开(公告)号:US5064655A
公开(公告)日:1991-11-12
申请号:US356262
申请日:1989-05-23
CPC分类号: A61K8/042 , A61K38/1808 , A61K47/183 , A61K8/14 , A61K9/0014 , A61K9/127 , A61Q19/00 , A61Q17/04 , A61Q19/007 , A61Q19/08 , Y10T428/2984
摘要: A liposome gel composition and method of preparing the same. The composition is composed of charged liposomes, at a relatively low lipid concentration, in a low-conductivity medium. The composition preferably contains a zwitterionic compound at its isoelectric point. The liposomes can be designed for cosmetic use, transdermal drug delivery, or enhanced retention on mucosal tissues, such as for ophthalmic use.
摘要翻译: 一种脂质体凝胶组合物及其制备方法。 该组合物由低电导率培养基中以相对低的脂质浓度的带电脂质体组成。 组合物优选在其等电点含有两性离子化合物。 脂质体可以设计用于化妆品用途,透皮药物递送或增强对粘膜组织的保留,例如用于眼科用途。
-
公开(公告)号:US4737323A
公开(公告)日:1988-04-12
申请号:US829710
申请日:1986-02-13
CPC分类号: C04B38/0051 , A61K9/1277 , C04B2111/00793 , Y10S436/829 , Y10T428/2984
摘要: A suspension of liposomes whose sizes are predominantly greater than about 1 micron is passed through an asymmetric ceramic filter whose inner-surface pore size is about 1 micron. The processed liposomes have a selected average size of about 0.4 microns or less, depending on the number of filter cycles, and a narrow distribution.
摘要翻译: 尺寸主要大于约1微米的脂质体的悬浮液通过其内表面孔径为约1微米的不对称陶瓷过滤器。 经处理的脂质体具有约0.4微米或更小的选择的平均尺寸,这取决于过滤器循环的数量和窄的分布。
-
-