1. Technical University of BerlinInstitute of Chemistry Strasse des 17. Juni 135 10623 Berlin Germany
2. Ruhr-University BochumInorganic Chemistry Universitaetsstrasse 150 44780 Bochum Germany
3. Fraunhofer UMSICHT Osterfelder Strasse 3 46047 Oberhausen Germany
4. Universitaet StuttgartInstitute of Biochemistry and Technical BiochemistryDepartment of Technical Biochemistry Allmandring 31 70569 Stuttgart Germany