Gel phase immiscibility

Some important aspects of the mixing behavior of selected systems should be mentioned. Non-ideal mixing is not only found for lipids in the ordered gel phases but also for liquid-crystalline lipids. Gel phase immiscibility and phase diagrams which are of the peritectic or eutectic type are regularly observed when the two lipids in the mixture have differences in chain length of 4 or more CH2-groups or when the gel phase stnictures are different. For instance, lipids that form inter-... 

Biological membranes and liposomes contain a mixture of phospholipids which results in a broadening of the temperature range over which they melt. When the hydrocarbon chains differ by two carbon atoms ideal mixing of phases occurs. Increasing the difference results in deviation from ideality with gel phase immiscibility and possibly peritectic behaviour [137], Where the... 

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