Daniel A. Hammer is the Alfred G. and Meta A. Ennis Professor of Bioengineering at the University of Pennsylvania, and the Inaugural Director of the Penn Center for Engineering for Health (CPE4H). Notable achievements of the Hammer laboratory include Adhesive Dynamics (1993), Cell-free Rolling (1994), Polymersomes (1999), Neutrophil (2007) Dendritic Cell (2011) and Macrophage (2015) Traction Forces, Recombinant Protein Vesicles (2015), & Motile Protocells (2019 - present.) He was the Chairman of Bioengineering at Penn from 2000-2007, and was the BMES Distinguished Lecturer in 2016. He is currently on the Burroughs Wellcome Fund CASI Advisory Board. He has graduated 57 PhD. students, and won the 2018 Penn Provost Award for Ph.D. Mentoring and Teaching.