1. Department of Nuclear, Plasma and Radiological Engineering, College of Engineering, University of Illinois at Urbana−Champaign, 104 S Wright St, Urbana, Illinois 61801, United States
2. Micro and Nanotechnology Laboratory, University of Illinois at Urbana−Champaign, 208 N Wright St, Urbana, Illinois 61801, United States
3. Group of Advanced Biomaterials and Regenerative Medicine, Bioengineering Program, University of Antioquia, Cl. 67, 53-108 Medellín, Antioquia, Colombia
4. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New México 87545, United States
5. Department of Bioengineering, University of Illinois at Urbana−Champaign, 1406 W Green St, Urbana, Illinois 61801, United States
6. University of Texas Medical Branch at Galveston Sealy Center for Vaccine Development, 301 University Blvd, Galveston, Texas 77555, United States
7. City of Hope National Research Medical Center, 1500 E Duarte Road, Duarte, California 91010-3012, United States