Thursday, May 3, 2012

1205.0141 (Hiroshi Noguchi)

Structure formation in binary mixtures of surfactants: vesicle
opening-up to bicelles and octopus-like micelles
   [PDF]

Hiroshi Noguchi
Micelle formation in binary mixtures of surfactants is studied using a coarse-grained molecular simulation. When a vesicle composed of lipid and detergent types of molecules is ruptured, a disk-shaped micelle, the bicelle, is typically formed. It is found that cup-shaped vesicles and bicelles connected with worm-like micelles are also formed depending on the surfactant ratio and critical micelle concentration. The obtained octopus shape of micelles agree with those observed in the cryo-TEM images reported in [S. Jain and F. S. Bates, Macromol. 37, 1511 (2004).]. Two types of connection structures between the worm-like micelles and the bicelles are revealed.
View original: http://arxiv.org/abs/1205.0141

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