1. Biomedical Research Laboratory, George Mason University, Manassas, VA 20110, USA
2. School of Systems Biology, College of Science, George Mason University, Manassas, VA 20110, USA
3. Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS 39217, USA
4. Department of Biology, College of Science, George Mason University, Fairfax, VA 22030, USA