1. Donetsk Medical University, 16 Ilych Avenue, 83003 Donetsk, Ukraine
2. Institute of Colloid Chemistry and Chemistry of Water, 42 Vernadsky Avenue, 03680 Kyiv (Kiev), Ukraine
3. Unilever R&D Port Sunlight, Quarry Road East, Bebington CH63 3JW, U.K.
4. Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Am Mühlenberg 1, 14424 Potsdam, Germany