1. INM – Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany
2. Chemistry Department Saarland University 66123 Saarbrücken Germany
3. Kuraray Europe GmbH Advanced Interlayer Solutions Competence Center for Innovation & Technology Mülheimer Str. 26 53840 Troisdorf Germany
4. Current address: Department of Developmental BioEngineering Technical Medical Centre University of Twente Enschede The Netherlands