1. Bio-Inspired and Smart Materials; MESA+ Institute for Nanotechnology; University of Twente; PO Box 207 7500 AE Enschede The Netherlands
2. Fraunhofer Institute for Applied Polymer Research; Geiselbergstr. 69 14476 Potsdam-Golm Germany
3. Chemistry Department; University of Potsdam; Am Mühlenberg 11 14476 Potsdam Germany
4. Faculty of Chemistry; Moscow State University; Lenin Hills 119991 Moscow Russia