1. Department of Chemical and Biomolecular Engineering, Johns Hopkins University Whiting School of Engineering, Baltimore, Maryland.
2. Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland.
3. Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.
4. Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
5. Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland.
6. Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland.
7. Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland.