Characterisation of mixed micelles

been characterized quite well using a variety of techniques individually and in combination over the last decade. Interest in these surfactant systems stems from a broad application base. These surfactant systems, or “detergents” have found application in oil recovery due to enhanced solubility, higher cloud points, and lower Krafft points than the corresponding pure surfactant in solution. The cosmetics industry found mixed surfactant systems caused less damage to corneal and epithelial tissues. Surfactants form micelles in solution in which the ionic/nonionic head group is exposed and the hydrophobic tail is buried, and co-micellization takes place in mixed systems. Micelle size is an important parameter which correlates with solubilizing efficiency and critical micelle concentration. In this report, the Malvern instruments Zetasizer Nano ZS is used to measure micelle size for TX-100/SDS, the most studied nonionic/anionic micelle system, at a variety of ionic strengths and surfactant compositions.