1. Department of Fibre and Polymer Technology KTH Royal Institute of Technology Stockholm SE‐10044 Sweden
2. Department of Clinical Science and Education and the Department of Hand Surgery Karolinska Institutet Stockholm SE‐11883 Sweden
3. Division Materials and Production Section for Biological Function RISE Research Institutes of Sweden Box 857 Borås SE‐50115 Sweden
4. Department of Laboratory Medicine Institute of Biomedicine University of Gothenburg Box 440 Gothenburg SE‐40530 Sweden