1. Nanochemistry Laboratory, ISIS & icFRC; Université de Strasbourg & CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
2. Department of Physics, Applied Physics and Astronomy; Binghamton University; Binghamton NY USA 13902
3. Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany