1. Institute for Lasers, Photonics and Biophotonics and Department of Chemistry, Natural Science Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
2. Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
3. Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York 14263, United States
4. Department of Chemistry, Natural Science Complex, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
5. Department of Biological Sciences, Cooke Hall, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States