8:15 AM. 123. Vascularizing Hydrogel to Deliver Stem Cell-Derived Islets to the Subcutaneous Space.Angelica Torres1, Sophia Kioulaphides, B.S., M.S.1, Graham Barber, Research Technician1, Haval Shirwan, Professor2, Esma Yolcu2, Ji Lei, Professor3, James Markmann, Professor3, Jeffrey Millman, Professor4, Andrés García, PhD1 1Georgia Institute of Technology, 2University of Missouri, 3University of Pennsylvania, 4Washington University, St. Louis