1. Werner Siemens Chair of Synthetic Biotechnology, Technical University of Munich (TUM), Lichtenbergstr. 4, D-85748 Garching, Germany
2. Molecular Imaging and Radiochemistry, Clinic of Nuclear Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg, Paul-Gordan-Str 3, D-91052 Erlangen, Germany
3. Institute of Bioprocess Engineering, Friedrich-Alexander Universität Erlangen-Nürnberg, Paul-Gordan-Str 3, D-91052 Erlangen, Germany