2:45 PM. 39. Development of an Injectable Alginate Hydrogel for Enhanced MSC Viability and Targeted Delivery in Rat Intervertebral Disc Repair.Mohammadjafar Hashemi, PhD in chemical engineering1, Julia Victore1, Charlotte Chen1, Sade Williams Clayton1, Simon Tang1, Lori Setton1, Nathaniel Huebsch1 1Washington University in St. Louis