[1
]Functional Polymer Materials, Chair for Advanced Materials Synthesis, Department of
Chemistry and Pharmacy, Julius-Maximilians-Universität Würzburg, Röntgenring 11, 97070
Würzburg, Germany
[2
]Lehrstuhl Tissue Engineering und Regenerative Medizin and Fraunhofer-Institut für
Silicatforschung ISC, Universitätklinikum Würzburg, Röntgenring 11, 97070 Würzburg,
Germany
[3
]Organic Chemistry Laboratory, Universität Bayreuth, Universitätsstrasse 30, 95447
Bayreuth, Germany