Dynamics of spontaneous vesicle formation in fluorocarbon and hydrocarbon surfactant mixtures

The spontaneous self-assembly of unilamellar vesicles was investigated by means of time-resolved synchrotron small-angle X-ray scattering. The self-assembly process was initiated by rapid mixing of anionic surfactant micelles with either zwitterionic or cationic surfactant micelles in equimolar rati...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 24(2008), 8 vom: 15. Apr., Seite 3759-66
1. Verfasser: Weiss, Thomas M (VerfasserIn)
Weitere Verfasser: Narayanan, Theyencheri, Gradzielski, Michael
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The spontaneous self-assembly of unilamellar vesicles was investigated by means of time-resolved synchrotron small-angle X-ray scattering. The self-assembly process was initiated by rapid mixing of anionic surfactant micelles with either zwitterionic or cationic surfactant micelles in equimolar ratio using a stopped-flow device. For the zwitteranionic systems, transient disklike mixed micelles are observed as structural intermediates prior to the onset of vesiculation. These disklike micelles display an exponential growth law, and above a critical size they close to form unilamellar vesicles. In the catanionic system, the earliest observable structures within the mixing time of 4 ms are unilamellar vesicles. Nevertheless, in both systems a narrow distribution of the vesicle size was observed at the initial stages of their formation. The subsequent evolution of the vesicle size distribution depends on the subtle differences in the bilayer composition and properties 
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700 1 |a Gradzielski, Michael  |e verfasserin  |4 aut 
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