Prof. Xiankai Sun is a Professor of Radiology at the Advanced Imaging Research Center at the UT Southwestern Medical Center and Director of the Cyclotron & Radiochemistry Program. He holds the Dr. Jack Krohmer Professorship in Radiation Physics and is a member of the Graduate Program in Biomedical Engineering. Originally from China, Dr. Sun received a Bachelor's degree in Chemistry from Wuhan University and a Master's degree in Chemistry from the Chinese Academy of Sciences in Beijing. He then obtained a doctoral degree in Inorganic Chemistry with a focus on the design and synthesis of supramolecular clusters with pre-designed symmetries (advised by Edward H. Wong, Ph.D.) from the University of New Hampshire in Durham. He then embarked on three years of postdoctoral training under the mentorship of Michael J. Welch, Ph.D., and Carolyn J. Anderson, Ph.D. Prior to joining the faculty at UT Southwestern in 2004, Dr. Sun served as a Research Instructor at Washington University School of Medicine in St. Louis. Dr. Sun’s expertise is in the design and synthesis of molecular imaging probes and therapeutic agents for various diseases.