Physical chemistry: molecular spectroscopy, plasma discharges, Langmuir-Blodgett films, biophysics, sensors. Current research efforts are in the applications of molecular spectroscopy in these principal areas: Surface biophysics of Langmuir-Blodgett films with emphasis on molecular binding interactions including those important to sensors; the homogeneous and heterogeneous reactions of oxy-radicals including atomic oxygen and hydroxyl radicals with application to pretreatment of biomass.