1. Laboratory for Atomistic and Molecular Mechanics, Department of Civil and Environmental Engineering; Massachusetts Institute of Technology; 77 Mass. Ave. Room 1-235A&B Cambridge MA 02139 USA
2. Laboratory of Bio-Inspired & Graphene Nanomechanics, Department of Civil, Environmental and Mechanical Engineering; Università di Trento; Via Mesiano, 77 I-38123 Trento Italy
3. Center for Materials and Microsystems; Fondazione Bruno Kessler; Via Sommarive, 18 I-38123 Trento Italy
4. Department of Biomedical Engineering; Boston University; 44 Cummington Mall Boston MA 02215 USA
5. Department of Biomedical Engineering; Tufts University; Medford MA 02155 USA