1. Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB), Stuttgart, Germany.
2. Institute for Interfacial Engineering (IGVT), University of Stuttgart, Stuttgart, Germany.
3. Fraunhofer Institute for Physical Measurement Techniques (IPM), Freiburg, Germany.
4. Institute of Tissue Engineering and Regenerative Medicine, Julius-Maximillians University Würzburg, Würzburg, Germany.
5. Inter-University Centre for Medical Technology Stuttgart-Tübingen (IZST), Eberhard Karls University Tübingen, Tübingen, Germany.