来自《耶鲁大学开放课程：生物医学工程探索 第2集 第2集》
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they form these structures that are called它们形成的结构名为 -
self-assembled structures自组装结构 -
because they occur naturally,因为它们能够自然生成 -
because of properties of the lipids.这归功于这种脂质的特性 -
The lipids will form a bi-layer脂质会形成双层膜 -
where the water soluble part of the lipid points out of this layer水溶性部分朝向膜层外 -
and the oily part points in.而脂溶性的部分朝向双层膜内部 -
The fascinating part about this layer is that这层膜的迷人之处在于 -
it solves the problem for phospholipids about它解决了磷脂 -
how to exist in water when half of you wants to be in oil,如何存在于水中和油脂中的问题 -
and that the water soluble part of the top leaflet here,水溶性的顶端部分 -
of the top points up into the water,向上插入水中