1. Department of Biomedical Engineering, University of Strathclyde, Glasgow G1 1QE, United Kingdom
2. Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland
3. Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
4. LIBER Center of Excellence, Aalto University, 00076 Aalto, Finland
5. Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
6. Department of Pure & Applied Chemistry, Thomas Graham Building, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom