Yongxin (Leon) received his BSc in Sun Yat-sen University in China. He then joined the Department of Chemistry in University of Alberta, Canada, and worked on development of directed evolution approaches for improved genetically encoded fluorescent calcium ion and voltage indicators for his PhD. He is the main inventor of GECO and QuasAr families of neural imaging tools. In the Synthetic Neurobiology group, he developed expansion pathology (ExPath). He then went on to start as an assistant professor at Carnegie Mellon University.