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فاز لاملار
Lamellar phases that exist in excess water are subclassified into different states: fluid (Lα), ripple ( Pβ ), gel (Lβ ), and pseudo-crystalline or subgel (Lc), depending on the lipid head group and tail orientations and assemblies.
It is generally accepted that the lamellar phases are probably compatible with the barrier functions of biological membranes.
Although lamellar phases appear to be the primary states of the lipid assem- bly in biological membranes, there also exists a significant amount of lipids that do not spontaneously form any of the states illustrated in Fig. 3.2.
The inverted cubic and hexagonal phases are independent non- lamellar phases that appear to be favored over lamellar phases when the temperature of the lipid composition is raised.
Various lamellar phases correspond to different organizations and orientations of the lipids
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