1. Protection Division, U.S. Army Combat Capabilities Development Command Chemical Biological Center, 5183 Blackhawk Road, Aberdeen Proving Ground, Maryland 21010, United States
2. Leidos, Inc., P.O. Box 68, Gunpowder, Maryland 21010, United States
3. Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, Maryland 21250, United States