In 1959, he moved to the Brooklyn Polytechnic Institute to work with Dr. David Harker and Dr. Jake Bello. Later that year, the entire Brooklyn Polytechnic Institute's crystallography group moved to Roswell Park Comprehensive Cancer Center in Buffalo, New York. He stayed at Roswell Park until the end of his life. In 1972 he spent eight months as a visiting professor of biophysics at Kyoto University.