1. Donetsk Institute for Physics and Engineering named after O.O. Galkin, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2. Institute of Nanotechnology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
3. Functional Morphology and Biomechanics, Zoological Institute, Kiel University, Kiel, Germany
4. Institut für Mechanik, Technische Universität Berlin, Berlin, Germany
5. Department of Materials Science and Engineering, Monash University, Clayton, Australia
6. Department of Mechanical Engineering, The University of Western Australia, Perth, Australia