Robert Doyle, the Laura J. and L. Douglas Meredith Professor of Teaching Excellence and professor of chemistry, is the inventor of a new compound that triggers the secretion of insulin in the pancreas without associated nausea. Working with colleagues at the University of Pennsylvania (Penn), the Seattle Children’s Hospital and SUNY Upstate Medical University, he has designed a conjugate of vitamin B12 that is bound to an FDA-approved drug called B12-Ex4.