1. Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
2. Holonyak Micro & Nanotechnology Lab, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
3. EnterpriseWorks, University of Illinois at Urbana−Champaign, Champaign, Illinois 61820, United States
4. Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
5. Department of Electrical and Computer Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States