1. Vlaamse Instelling voor Technologisch Onderzoek; Boeretang 200 B-2400 Mol Belgium
2. SIM Researcher, Program NANOFORCE; SIM-Flanders vzw; Technologiepark 935 B-9052 Zwijnaarde Belgium
3. Research Group of Physical Chemistry and Polymer Science; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
4. Research Group of Electrochemical and Surface Engineering; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
5. Department of Mechanics of Materials and Constructions; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium