1. Department of BionanoscienceDelft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
2. Department of Aerospace Science and TechnologyPolitecnico di Milano Via Giuseppe La Masa, 34 20156 Milan Italy
3. Laboratory for Mechanics of Materials and NanostructuresEMPA Swiss Federal Laboratories for Materials Science and Technology Überland Str. 129 8600 Dübendorf Switzerland
4. Weizmann Institute of Science 234 Herzl St. Rehovot 7610001 Israel
5. Faculty of Aerospace EngineeringDelft University of Technology Kluyverweg 1 2629 HS Delft The Netherlands
6. Department of BiologyUniversity of Rochester Hutchison Road Rochester NY 14620 USA