1. Department of Dermatology Charité University Clinic Charité Platz 1 D‐10117 Berlin Germany
2. Innovation R&D Direction Laboratoires Expanscience Epernon France
3. Department of Dermatology and Venereology Tokuda Hospital Sofia Bulgaria
4. Department of Dermatology Institut Alfred Fournier Paris France
5. Institute of Material Science Friedrich Schiller University Jena Germany
6. Centre Technologique des Microstructures (CTμ) University Lyon 1 Lyon France
7. University Lyon 1 EA4169 “Fundamental, pathological and therapeutic aspects of the skin barrier function” SFR Lyon‐Est Santé ‐ INSERM US 7 ‐ CNRS UMS 3453 Lyon France