Veiro J A, Khalifah R G, Rowe E S
Biochemistry Department, University of Kansas Medical School, Kansas City.
Biochim Biophys Acta. 1989 Feb 27;979(2):251-6. doi: 10.1016/0005-2736(89)90441-0.
The polymorphic phase behavior of dielaidoylphosphatidylethanolamine (DEPE) has been investigated using spectrophotometry and 31P nuclear magnetic resonance (NMR). It has been demonstrated that the bilayer to inverted hexagonal phase transition can be observed by spectrophotometry. The effects of the methanol, ethanol, and propanol on both the gel to liquid crystal transition and the bilayer to inverted hexagonal transition were investigated by spectrophotometry. It was shown that these alcohols shift the gel to liquid-crystalline phase transition to lower temperature, whereas the bilayer to inverted hexagonal phase transition is shifted to higher temperatures by these alcohols. The structural transition between the bilayer and inverted hexagonal phase of pure DEPE was also investigated by 31P-NMR.
已使用分光光度法和31P核磁共振（NMR）研究了二反油酰磷脂酰乙醇胺（DEPE）的多晶型相行为。已证明通过分光光度法可观察到双层到反相六角相的转变。通过分光光度法研究了甲醇、乙醇和丙醇对凝胶到液晶转变以及双层到反相六角转变的影响。结果表明，这些醇类将凝胶到液晶相的转变移至较低温度，而双层到反相六角相的转变则被这些醇类移至较高温度。还通过31P-NMR研究了纯DEPE双层和反相六角相之间的结构转变。
