Arthur is a distinguished professor of chemical engineering at Northeastern University. He has worked at medical device and biotech companies including Genzyme and Medtronic, where he co-invented the injection-molded polyurethane connector used in pacemakers. Arthur is the co-chair of the National research council of the National Academies' Roundtable on Biomedical Engineering Materials and Applications, and has more than 50 patents to his name.