Jason Tsai, Stanford University (IMAGE) Stanford University Caption Cheng-ting "Jason" Tsai, a graduate student in the lab of Carolyn Bertozzi, and Peter Robinson, a former graduate student of Bertozzi's, in 2016, work on an earlier version of their test. Credit L.A. Cicero Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.