Johnston is the inventor of the Calviri’s central technologies. In addition to Calviri, he has been a founder of Eliance, Inc. (Macrogenics), Synbody Biotechnology and HealthTell, Inc. He is Director of the Arizona State University Biodesign Institute’s Center for Innovations in Medicine and Professor in the School of Life Sciences. He has published almost 200 peer-reviewed papers and holds 45 patents. Prior to his appointment at ASU he was Professor and Director of the Center for Biomedical Inventions at UT-Southwestern Medical Center and Professor of Biology and Biomedical Engineering at Duke University. He is a member of the National Academy of Inventors. Dr. Johnston received his B.S. and Ph.D. degrees from the University of Wisconsin.