| Zettl, H.; Portnoy, Y.; Gottlieb, M.; Krausch, G.: Investigation of Micelle Formation by Fluorescence Correlation Spectroscopy, The Journal of Physical Chemistry B, 109(27), 13397-13401 (2005), doi:10.1021/jp0510600 [Link] | |
| Abstract: We show that noncovalently bound dye molecules can be used as labels in single-molecule fluorescence experiments for the determination of aggregate formation in standard surfactant systems. Aqueous solutions of sulfosuccinic acid bis(2-ethylhexyl) ester sodium salt, hexadecyltrimethylammonium chloride, and pentaethylene glycol monododecyl ether have been studied by fluorescence correlation spectroscopy using commercially available dyes. The translational diffusion coefficient and the critical micelle concentrations have been determined and compare well to values reported in the literature. The respective charges of the surfactant and of the dye molecule are crucial for the effectiveness of the presented method. |
Sonderforschungsbereich 481
Komplexe Makromolekül- und Hybridsysteme in inneren und äußeren Feldern
|
|
powered by php + PostgreSQL - Letzte Änderung 15.03.2006- Impressum