1. Department of Chemical and Materials Engineering, Donadeo Innovation Centre for Engineering, University of Alberta, 9211-116 Street NW, Edmonton, AB T6G 1H9, Canada
2. Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1H9, Canada
3. Alberta Diabetes Institute, Li Ka Shing Centre for Research, 112th Street, Edmonton, AB T6G 2E1, Canada