磷脂双分子层

流动的磷脂双分子层

三种常见的磷脂结构：脂质体、胶束和双分子层

磷脂双分子层或稱雙層磷脂質是由两层磷脂分子组成的细胞薄膜，是构成细胞膜的主要结构。单个的磷脂分子包含由极性磷酸基团形成的亲水端和由非极性烃类基团构成的疏水端。两层磷脂分子的亲水端朝向外侧，与细胞质和细胞外液接触。疏水端尾则朝向内侧。
磷脂双分子层是流动镶嵌模型的基础构成，对细胞膜各种功能的正常运转具有重要意义。

1977年，世界最初「人工磷脂双分子层」由日本九州大學教授國武豐喜完成。

参见

• 细胞膜
• 生物薄膜

外部連結

• Avanti Lipids One of the largest commercial suppliers of lipids. Technical information on lipid properties and handling and lipid bilayer preparation techniques.
• LIPIDAT An extensive database of lipid physical properties
• Structure of Fluid Lipid Bilayers Simulations and publication links related to the cross sectional structure of lipid bilayers.
• Lipid Bilayers and the Gramicidin Channel (requires Java plugin) Pictures and movies showing the results of molecular dynamics simulations of lipid bilayers.
• Structure of Fluid Lipid Bilayers, from the Stephen White laboratory at University of California, Irvine
• Animations of lipid bilayer dynamics (requires Flash plugin)