Daniel A. Hammer is the Alfred G. and Meta A. Ennis Professor of Bioengineering and Professor of Chemical and Biomolecular Engineering at the University of Pennsylvania. He has published over 230 papers and has an H-index (G-scholar) of 72. He received his B.S.E. degree from Princeton University and his Ph.D. from the University of Pennsylvania. His research interests are in the design of synthetic cells (protocells) that can secret and crawl, making membranes from designer surfactants, including polymers and recombinant proteins, and in the adhesion and motility of cells of the immune system. He was an NSF Presidential Young Investigator in 1989, the Robert W. Vaughan lecturer at Caltech in 2002, the Philip W. Morrison lecturer at Case Western in 2006, and is a fellow of BMES.