Zhanjun Gu received his B.E. from Huazhong University of Science and Technology and his Ph.D. from the Institute of Chemistry, Chinese Academy of Science. He then became a postdoctoral fellow at the University of Georgia. In 2009, he joined the faculty at CAS Key Lab for Biomedical Effects of Nano-materials & Nanosafety at the Institute of High Energy Physics, Chinese Academy of Science. His current research interests include nanomaterial synthesis, radiotherapy, radioprotection and nanosafety.