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. Author manuscript; available in PMC: 2008 Dec 30.
Published in final edited form as: Methods Mol Biol. 2007;398:41–58. doi: 10.1007/978-1-59745-513-8_5

Fig. 5.

Fig. 5

Changes in surface compressional moduli (Cs−1) induced on mixing of equimolar cholesterol with PC or SM. Lower symbols represent the Cs−1 values of the pure lipids in the absence of cholesterol. Upper symbols represent the experimentally observed Cs−1 values for binary mixtures with equimolar cholesterol. The X along each line represents the ideal Cs−1 values calculated based on additivity of each pure lipid component in the binary mixtures. All Cs−1 values were determined at a surface pressure of 30 mN/m. The notation X:Y refers to the acyl chain length in carbon atoms (X) and the number of cis-double bonds (Y) present in the different molecular species of PC or SM.