Investigation of micelle formation by fluorescence correlation spectroscopy

Heiko Zettl, Yariv Portnoy, Moshe Gottlieb, Georg Krausch

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


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.

Original languageEnglish
Pages (from-to)13397-13401
Number of pages5
JournalJournal of Physical Chemistry B
Issue number27
StatePublished - 14 Jul 2005

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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