1. Department of Microsystems Engineering (IMTEK), Chemistry & Physics of Interfaces, University of Freiburg, Freiburg im Breisgau 79110, Germany
2. livMatS@FIT (Freiburg Center for Interactive Materials and Bioinspired Technologies), University of Freiburg, Freiburg 79110, Germany
3. Institute of Biochemistry, Center of Chemistry and Biomedicine, University of Innsbruck, 6020 Innsbruck, Austria
4. Freiburg Materials Research Center FMF, Albert-Ludwigs-University of Freiburg, 79104 Freiburg, Germany
5. Department of Pediatrics, Section Systems Medicine of Metabolism and Signaling, University of Groningen, University Medical Center Groningen, Groningen 9700 RB, The Netherlands