1. Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
2. Department of Chemistry and SALSA, Humboldt Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
3. Tofwerk AG, Uttigenstrasse 22, CH-3600 Thun, Switzerland
4. Cellenion SASU, 60 Avenue Rockefeller, 69008 Lyon, France