1. Department of Chemistry and Biochemistry, George Mason University, Fairfax, Virginia 22030, United States
2. Department of Bioengineering, George Mason University, Fairfax, Virginia 22030, United States
3. Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
4. Quantum Science & Engineering Center, George Mason University, Fairfax, Virginia 22030, United States