Qingjun Liu is currently Professor in Biosensor National Special Laboratory, Director of Biomedical Engineering Institute of Zhejiang University, China. He was also a visiting scholar in Biomedical Engineering at the Hong Kong Polytechnic University and the Micro and Nanotechnology Laboratory at the University of Illinois at Urbana-Champaign. He is also a member of the Youth Committee of the China Biomedical Engineering Society and a director of the China Micron Nanotechnology Society. His interests mainly focus on biomedical sensing and detection research.