1. Department of Organic and Macromolecular Chemistry
2. Heinrich-Heine-University Düsseldorf
3. 40225 Düsseldorf
4. Germany
5. Laboratory for Biomaterials
6. Institute for Biotechnology
7. Helmholtz-Institute for Biomedical Engineering
8. RWTH Aachen University
9. 52074 Aachen
10. Max Planck Institute of Colloids and Interfaces
11. 14424 Potsdam
12. Department of Chemistry
13. Davidson College
14. USA