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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 11, Number 6
BKCSDE 11(6)
June 20, 1990 

 
Title
A Study of Phase Transition of Lipids and Lipid Mixtures by Differential Scanning Calorimetry
Author
Nam Hong Kim, Sung Bae Roh, Won Woo Park*
Keywords
Abstract
The simple binary mixtures of pure phospholipids such as DPPC:DSPC and DPPC:DPPA were investigated with differential scanning calorimeter. The thermotropic properties of DPPC and DSPC mixtures did not deviate much from the ideal curves that was obtained on varying either the temperature or the relative proportions of phospholipids. This means that the two phospholipids are completely miscible in the liquid and solid phase. But the thermotropic properties of DPPC and DPPA mixture deviated much from the ideal phase diagram. It resulted from the repulsion between the head groups of acidic phospholipids. Heat capacity suggested by Harden McConell was calculated. The larger Cp was, the sharper the endothermic peak became.
Page
508 - 511
Full Text
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