1. L.M. Litvinenko Institute of Physical Organic and Coal Chemistry, 70 R. Luxemburg Str., Donetsk 83114, Ukraine
2. Yaroslav-the-Wise Novgorod State University, 41, B. S.-Peterburgskaya Str., Veliky Novgorod 173003, Russia
3. Donetsk National Technical University, 58 Artema Str., Donetsk 83000, Ukraine
4. Max Planck Institute of Colloids and Interfaces, Potsdam/Golm D-14424, Germany
5. SINTERFACE Technologies, Berlin D-12489, Germany