1. Center for Biopharmaceuticals and Biobarriers in Drug Delivery Department of Chemistry University of Copenhagen Thorvaldsensvej 40 1871 Frederiksberg Denmark
2. Faculty of Pharmaceutical Sciences University of British Columbia 2405 Wesbrook Mall Vancouver BC V6T 1Z3 Canada
3. Department of Physics and Astronomy University of British Columbia 6224 Agricultural Road Vancouver British Columbia V6T 1Z1 Canada
4. Center for Drug Delivery and Biophysics of Biopharmaceuticals Department of Pharmacy Faculty of Health and Medical Sciences University of Copenhagen Universitetsparken 2 2100 Copenhagen Denmark