1. Institute of Synthetic Biology, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
2. Institute of Synthetic Biology and CEPLAS, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
3. Retired: Max Planck Institute
for Chemical Energy Conversion. At present: Institute for Analytical Chemistry, University Leipzig, Linnéstrasse 3, 04103 Leipzig, Germany