1. Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
2. Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield S1 3JD, United Kingdom
3. Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
4. National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
5. Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
6. Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
7. Institute for Nanoscience & Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States