1. Center for Soft Nanoscience Westfälische Wilhelms-Universität Münster Busso-Peus-Straße 10 48149 Münster Germany
2. Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50383 Wrocław Poland
3. Department of Chemistry and Institute for Sustainability and Energy at Northwestern Northwestern University Evanston Illinois 60208-3113 USA
4. Current address: School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
5. Institute of Hygiene Westfälische Wilhelms-Universität Münster Mendelstraße 7 48149 Münster Germany