Chinese Journal of Applied Chemistry ›› 1996, Vol. 0 ›› Issue (3): 41-45.

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Solubilization of Cholesterol in Polyoxyethylene Ether Lyotropic Liquid Crystal

Dai Lerong, Yang Qingping, Wu Peiqiang   

  1. Institute of Physical Chemistry, Peking University, Beijing 100871
  • Received:1995-09-26 Revised:1995-12-31 Published:1996-06-10 Online:1996-06-10

Abstract: Phase behaviour and solubilization of cholesterol in liquid crystal phase of C12 (EO)4-H2O system and C12(EO)4-lecithin-H2O system were investigated.The phase diagram of C12(EO)4-lecithin-water-cholesterol system was similar to lecithin-water-cholesterol system.In C12(EO)4-H2O ststem,where cholesterol was solubilized,the concentration range of C12(EO)4 in liquid crystal was broader than that without cholesterol.The results of X-ray diffraction showed that,when cholesterol was solubilized into C12(EO)4-H2O lamellar liquid crystal,the thickness of amphiphile bilayer d0 increased,the amphiphile molecular array was more compact and the penetration of water molecules decreased.

Key words: polyoxyethylene ether, lyotropie liquid erystal, eholesterol, solubilization