1. Department of Bioengineering Stanford University Stanford CA 94305 USA
2. Department of Materials Science & Engineering Stanford University Stanford CA 94305 USA
3. Department of Medicine (Endocrinology) Stanford University Stanford CA 94305 USA
4. Department of Pediatrics (Endocrinology) Stanford University Stanford CA 94305 USA
5. Diabetes Research Center Stanford University Stanford CA 94305 USA
6. ChEM‐H Institute Stanford University Stanford CA 94305 USA