The present invention provides methods and systems for producing liposomes by filtration. The methods include passing a heated lipid suspension through a filter assembly comprising two or more filters connected in series, wherein an orifice is disposed between adjacent filters. The methods and systems can produce liposomes having an average diameter that is less than half the diameter of the filter pores. Further, the methods and systems can produce liposomes with <100 nm average diameter, even when the liposomes comprise at least 30% sterol.
本发明提供了通过过滤生产脂质体的方法和系统。这些方法包括让加热的脂质悬浮液通过由两个或两个以上串联的过滤器组成的过滤器组件,其中相邻过滤器之间有一个孔。这些方法和系统可产生平均直径小于过滤孔直径一半的脂质体。此外,即使脂质体包含至少 30% 的
固醇,这些方法和系统也能产生平均直径小于 100 nm 的脂质体。