Darrell J. Irvine, Ph.D., Professor, Depts. of Biological Engineering and Materials Science & Engineering, MIT   Lunch will be served beginning at 11:45 am. Bio: Darrell Irvine, Ph.D., is a Professor at the Massachusetts Institute of Technology and an Investigator of the Howard Hughes Medical Institute. He also serves on the steering committee of the Ragon Institute of MGH, MIT, and Harvard.  His research is focused on the application of engineering tools to problems in cellular immunology and the development of…