1. NSEC Center for Affordable Nanoengineering of Polymeric Biomedical Devices; Ohio State University; Columbus OH 43209 USA
2. Biomedical Engineering Department; Ohio State University; Columbus OH 43209 USA
3. Department of Physics; Ohio State University; Columbus OH 43209 USA
4. Division of Hematology; Comprehensive Cancer Center; The Ohio State University; Columbus OH 43209 USA
5. Electrical and Computer Engineering Department; Ohio State University; Columbus OH 43209 USA
6. Chemical and Biomolecular Engineering Department; Ohio State University; Columbus OH 43209 USA