1 Department of Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg, Roentgenring 11, 97070 Wuerzburg, Germany. Jan.Hansmann@isc.fraunhofer.de.
2 Translational Center Regenerative Therapies, Fraunhofer Institute for Silicate Research ISC, Roentgenring 11, 97070 Wuerzburg, Germany. Jan.Hansmann@isc.fraunhofer.de.
3 Department of Biotechnology, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria. dominik.egger@boku.ac.at.
4 Department of Biotechnology, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria. cornelia.kasper@boku.ac.at.