Prof. Dr. Guobao Xu received a B.Sc. degree in Polymer Materials from Jilin University, an M.Sc. degree in Physical Chemistry from Xiamen University, and a Ph.D. degree in Analytical Chemistry from State Key Laboratory of Electroanalytical Chemistry, Institute of Applied Chemistry, Changchun, China, in 1993, 1996, and 1999, respectively. He was a Research Assistant at the Department of Chemistry, The University of Hong Kong (2000–2001); completed a Postdoctoral Fellow at the Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University (2001–2003); and was a JST Researcher at Biosensing Research Group, Ubiquitous Interface Laboratory, NTT Microsystem Integration Laboratories of Nippon Telegraph and Telephone Corporation (2003–2004). He has been a Researcher and Ph.D. Supervisor at the State Key Laboratory of Electroanalytical Chemistry (SKLEC), Changchun Institute of Applied Chemistry (CIAC) from 2004 to the present and has been the Deputy Director of SKLEC from 2009 to the present. In addition, he was awarded The Second Class Award of National Natural Science of China in 2015. His research interests are electrochemiluminescence, shape-controlled synthesis and analytical applications of metal nanocrystals, and synthesis and applications of micro/nanospheres.