Shapes of mixed phospholipid vesicles.
We studied the shape of phospholipid vesicles prepared by hydration of a mixture of phosphatidylcholine (SOPC) and phosphatidylserine (SOPS) in different proportions. The aim of the work is to obtain some insight into the influence of the chemical composition of a biomembrane on its shape. The optical microscopy results show that the shape of the vesicles depend on the SOPC:SOPS composition. For low SOPS contents, coiled cylindrical vesicles are observed. The results suggest that specific compositions of the SOPC:SOPS vesicles produce some spontaneous curvature on the membrane and then a coiling instability.
Paredes-Quijada
Gerardo
G
Posgrado en Polímeros y Materiales, Universidad de Sonora, 83000 Hermosillo, Sonora, Mexico.
Aranda-Espinoza
Helim
H
Maldonado
Amir
A