1. Department of Pharmaceutical Sciences, Biointerfaces Institute University of Michigan Ann Arbor Michigan USA
2. Department of Chemical Engineering, Biointerfaces Institute University of Michigan Ann Arbor Michigan USA
3. Isermann Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies Rensselaer Polytechnic Institute Troy New York USA
4. Novo Nordisk A/S Bagsværd Denmark
5. Department of Biomedical Engineering, Biointerfaces Institute University of Michigan Ann Arbor Michigan USA