Optimizing Druggability through Liposomal Formulations: New Approaches to an Old Concept

Figure 4

Examination of a lipidic bilayer. The longer apolar chains are stacked in the internal department of the bilayer. Because of their length, they are able to move across the surface of their lipidic sheet, granting the membrane with a valuable fluidity. The darker spots represent the polar heads of each lipid.