1. Department of Biomedical Engineering, 5045 Emerging Technologies Building; Texas A&M University; 3120 TAMU College Station TX 77843-3120 USA
2. Characterization Facility, College of Science and Engineering, 1-234 Nils Hasselmo Hall, 312; University of Minnesota; Church Street S. E. Minneapolis MN 55455 USA
3. Texas A&M University; Laboratory for Synthetic-Biologic Interactions, Department of Chemistry, 1031 Chemistry Complex; 3012 TAMU College Station TX 77842 USA
4. Lawrence Livermore National Laboratory; 7000 East Ave. Livermore CA 94550 USA