Rice University Bioengineer Han Xiao (IMAGE) Rice University Caption Rice University bioengineer Han Xiao and his team developed the simple pClick technique to attach drugs or other substances to antibodies, the powerful proteins that are central to the body's immune system. Credit Jeff Fitlow/Rice University Usage Restrictions Credit must be used. 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.