1. Arizona Cancer Center, University of Arizona, Tucson, AZ 85724;
2. Department of Chemistry and Biochemistry;
3. Department of Biomedical Engineering, University of Arizona, Tucson, AZ 85721;
4. Hematology/Oncology Section, College of Medicine, University of Arizona, Tucson, AZ 85724;
5. Department of Nutritional Sciences, University of Arizona, Tucson, AZ 85721;
6. Department of Imaging, H Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA