1. Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois.
2. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois.
3. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts.
4. Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia.
5. Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois.