1. Office of Science and Engineering Laboratories; U.S. Food and Drug Administration (FDA); Silver Spring MD USA
2. Joint Department of Biomedical Engineering; University of North Carolina at Chapel Hill; NC USA
3. Institute of Materials Science and Technology; Vienna University of Technology; Favoritenstrasse 9-11 Vienna Austria
4. Institute of Applied Synthetic Chemistry; Vienna University of Technology; Getreidemarkt 9 Vienna Austria