1. Biomedical
Materials Group, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
2. Department
of Applied Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
3. Institute
of Macromolecular Chemistry and Paper Chemistry, Technical University Darmstadt, Petersenstrasse 22, D-64287 Darmstadt, Germany
4. Institute
of Plant and Wood Chemistry, Dresden University of Technology, Pienner
Strasse 19, D-01737 Tharandt, Germany