1. Dais Analytic Corporation, 11552 Prosperous Drive, Odessa, Florida 33556; Physics Department, U.S. Naval Academy, Annapolis, Maryland 21402-5026; Department of Chemistry, Clemson University, Clemson, South Carolina 29634-0973; Department of Chemical Engineering, Virginia Commonwealth University, Richmond, Virginia, 23284-3028; and Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia 23298-0540