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Formation of lens-like vesicles induced via microphase separations on a sorbitan monoester membrane with different headgroups.
- Source :
-
Colloids & Surfaces B: Biointerfaces . Nov2015, Vol. 135, p235-242. 8p. - Publication Year :
- 2015
-
Abstract
- The microphase separation of lipid molecules on a vesicle membrane can be induced, depending on the difference in the geometric structures of their headgroups. Through cryo-transmission-electron-microscopy analysis, a lens-like vesicle was prepared by mixing 50 wt% Span 40 (sorbitan monopalmitate) and 50 wt% Tween 40 [polyoxyethylene (20) sorbitan monopalmitate]. Considering the molecular structures of Span 40 and Tween 40, the high-curvature region was mainly formed by Tween 40. As determined by Fourier-transform infrared spectroscopy, dielectric-dispersion analysis, and differential scanning calorimetry, a hydration layer was likely formed because polyoxyethylene conjugates with the headgroups of Tween 40. These investigations of the obtained self-assembled aggregates of nonionic surfactants with heterogeneous surfaces could contribute to the development of new types of biomaterials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09277765
- Volume :
- 135
- Database :
- Academic Search Index
- Journal :
- Colloids & Surfaces B: Biointerfaces
- Publication Type :
- Academic Journal
- Accession number :
- 111824845
- Full Text :
- https://doi.org/10.1016/j.colsurfb.2015.07.071