W. Mark Saltzman is the Goizueta Foundation Professor of Chemical and Biomedical Engineering at Yale University. His books include Drug Delivery: Engineering Principles for Drug Therapy and Tissue Engineering: Engineering Principles for the Design of Replacement Organs and Tissues, and his articles have appeared in Biomaterials and Nature Materials. The chair of the Department of Biomedical Engineering, Professor Saltzman is also the recipient of numerous distinguished teaching awards from Yale, Johns Hopkins, Cornell, and the University of Pennsylvania.