1. Physical Chemistry I; Department of Chemistry; University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE); Universitätsstrasse 5 Essen D-45141 Germany
2. Molecular Biology II; Department of Biology; University Duisburg-Essen and Zentrum für Molekulare Biotechnologie (ZMB); Universitätsstrasse 5 Essen D-45141 Germany
3. Dipartimento di Chimica “Ugo Schiff”; Universita' di Firenze; Via della Lastruccia 3 Sesto Fiorentino FI I-50019 Italy