About the Authors

Nicola M. Pugno

nicola.pugno@unitn.it

Affiliations Laboratory of Bio-Inspired & Graphene Nanomechanics, Department of Civil, Environmental and Mechanical Engineering, Università di Trento, Trento, Italy, Center for Materials and Microsystems, Fondazione Bruno Kessler, Povo (Trento), Italy, School of Engineering & Materials Science, Queen Mary University of London, London, United Kingdom

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NMP. Performed the experiments: NMP. Analyzed the data: NMP. Contributed reagents/materials/analysis tools: NMP. Wrote the paper: NMP.