1. ETH Zurich; Department of Health Science and Technology; Schmelzbergstrasse 9, LFO E23 Zurich 8092 Switzerland
2. ETH Zurich; Institute of Process Engineering; Sonneggstrasse 3 Zurich 8092 Switzerland
3. EMPA, Laboratory for Advanced Fibers; Lerchenfeldstrasse 5 St. Gallen 9014 Switzerland