Drexel Research Team Spearheads 3-D Printing of Embryonic Stem Cell 'Blocks' Philly Voice January 13, 2016 Wei Sun, PhD, Albert Soffa Chair professor in the College of Engineering, was mentioned in a Jan. 13 Philly Voice story about his development of a method for 3-D printing embryonic stem cells. View Story Topical Tags: College of Engineering Share Related