1. Peter the Great Saint Petersburg Polytechnic University, St Petersburg, Russia
2. Saint Petersburg State University of Industrial Technologies and Design, St Petersburg, Russia
3. Immanuel Kant Baltic Federal University, Kaliningrad, Russia
4. Institute of macromolecular compounds of Russian Academy of Science, St. Petersburg, Russia
5. Federal State Budgetary Institution “Vreden National Medical Research Centre of Traumatology and Orthopedics” of the Russian Ministry of Health, St Petersburg, Russia
6. Tampere University, Tampere, Finland