1. Complex Materials Department of Materials ETH Zürich Zürich 8093 Switzerland
2. Institute for Biomechanics Department of Health Science and Technology ETH Zürich Zürich 8093 Switzerland
3. Laboratory of Mechanical Metallurgy Institute of Materials EPFL Lausanne Lausanne 1015 Switzerland
4. SNSF Postdoctoral Fellow London SW7 2AZ UK
5. Institute of Pharmaceutical Sciences Department of Chemistry and Applied Biosciences ETH Zürich Zürich 8093 Switzerland