1. INM‐Leibniz Institute for New Materials Campus D2 2 66123 Saarbruecken Germany
2. Institute for Clinical and Experimental Surgery Saarland University 66421 Homburg Germany
3. Comparative Anatomy Department of Biology University of Bologna & Comparative Histolab 40126 Bologna Italy
4. Division of Cell and Developmental Biology Institute of Biology Leipzig University 04103 Leipzig Germany
5. Department Cell Biology of the Skin Cologne Excellence Cluster for Stress Responses in Ageing‐associated diseases (CECAD) Center for Molecular Medicine Cologne (CMMC) University Hospital Cologne University of Cologne 50931 Cologne Germany
6. Chemistry Department Saarland University 66123 Saarbruecken Germany