1. Department of Plastic Reconstructive and Aesthetic Surgery Medical University of Vienna Vienna 1090 Austria
2. Austrian Cluster for Tissue Regeneration Vienna Austria
3. Institute for Physics and Materials Science University of Natural Resources and Life Sciences Vienna 1190 Austria
4. Department of Analytical Chemistry Faculty of Chemistry University of Vienna Vienna 1090 Austria
5. Institute of Soil Research University of Natural Resources and Life Sciences Vienna 1190 Austria
6. Institute of Wood Technology and Renewable Materials University of Natural Resources and Life Sciences Tulln an der Donau 3430 Austria
7. Department of Applied Science William & Mary Williamsburg VA 23185 USA
8. Medical Systems Biophysics and Bioengineering Leiden Academic Centre for Drug Research Leiden University Leiden 2333 The Netherlands