The phase behaviour of mixtures of recombined milk membrane lipids dioleoylphosphatidylcholine (DOPC), sphingomyelin (SM), dioleoylphosphatidylethanolamine (DOPE), phosphatidylinositol (PI) and dioleoylphosphatidylserine (DOPS) in 60% water was examined as a function of temperature between 5 and 90 degrees C. The aim was to examine under which lipid composition the average properties turn from balanced over to hydrophobic. The phase boundaries were determined by small angle X-ray diffraction (SAXD) and differential scanning calorimetry (DSC). The lamellar phase was dominating in the DOPC/SM/DOPE system. The phase boundary for the reversed hexagonal phase was only observed at high DOPE content within the examined temperature interval. The anionic phospholipids PI and DOPS induced a swollen lamellar phase, but no significant change of the transition between the lamellar phase and the reversed hexagonal phase was observed.

中文翻译：

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模型乳膜脂质系统的相平衡。

根据温度在5到90度之间的函数，检测了60％水中的重组乳膜脂质二油酰基磷脂酰胆碱（DOPC），鞘磷脂（SM），二油酰磷脂酰乙醇胺（DOPE），磷脂酰肌醇（PI）和二油酰磷脂酰丝氨酸（DOPS）的混合物的相行为。 C.目的是检查在哪种脂质组成下，平均性质从平衡变为疏水。通过小角度X射线衍射（SAXD）和差示扫描量热法（DSC）确定相界。层状相在DOPC / SM / DOPE系统中占主导地位。六方相的相界仅在检查的温度范围内在高DOPE含量下才能观察到。阴离子磷脂PI和DOPS引起溶胀的层状相，