Professor Easton has made important contributions to two areas of chemistry, which have stimulated academic and commercial activity, nationally and internationally. In one, his work on biochemical reaction mechanisms and involving amino acid free radicals in particular has established ground rules to explain metabolic processes, provide synthetic methods and control physiological disorders. With the other, dealing with supramolecular chemistry and molecular recognition, and based primarily on modified cyclodextrins as templates, he has shown how molecular hosts can be designed and constructed to control chemical processes and to produce novel catalysts and molecular reactors, as well as agents to facilitate the administration of pharmaceuticals.