1. School of Biomedical Engineering, Drexel University, Philadelphia, Pennsylvania.
2. Department of Radiation Oncology, Drexel University College of Medicine, Philadelphia, Pennsylvania.
3. Prime Synthesis, Inc., Aston, Pennsylvania.
4. Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, Pennsylvania.
5. Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania.