1. Department of Chemical Engineering and Food Engineering – Federal University of Santa Catarina – EQA/UFSC – C.P. 476 88040–900 Florianópolis SC Brazil
2. Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
3. Department of Dermatology – University Medical Center – Johannes Gutenberg‐University Mainz Langenbeckstrasse 1 55131 Mainz Germany