1. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
2. Leidos Corp., P.O. Box 68, Gunpowder, Maryland 21010, United States
3. Analytical Toxicology Branch, R&T Directorate, U.S. Army Edgewood Chemical and Biological Center, Aberdeen Proving Ground, Maryland 21010, United States
4. Materials Science and Engineering Branch, U.S. Army Natick Soldier Research, Development & Engineering Center, Natick, Massachusetts 01760, United States