1. a Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
2. b Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
3. c Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
4. d Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
5. e Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
6. f Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
7. g Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
8. h Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany
9. i Center for Biomaterial Development, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany. andreas.lendlein@hzg.de