1. Organic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE) University Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
2. Institute of Safety and Security Research University of Applied Sciences Bonn-Rhein-Sieg 53359 Rheinbach Germany
3. Dipartimento di Ingegneria Università degli Studi di Palermo Viale delle Scienze, Ed. 6 Palermo 90128 Italy