1. Department of Chemistry, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
2. Department of Chemistry, University of Arkansas at Fayetteville, Fayetteville, Arkansas 72701, United States
3. Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
4. Department of Radiation Oncology, Arkansas Nanomedicine Center, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, 4301 W Markham Street, Little Rock, Arkansas 72205, United States
5. School of Chemistry and Biochemistry, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
6. Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States