Prof. Zhifei Dai obtained his Ph.D. in Physical Chemistry at the Institute of Photographic Chemistry, Chinese Academy of Sciences in 1998. From 1999 to 2005, he worked at the School of Sciences, Kwansei Gakuin University in Japan, Max-Planck Institute of Colloids and Interfaces in Germany, and the School of Medicine, Emory University in USA, respectively. In March 2005, he became a Professor at the School of Life Science and Technology, Harbin Institute of Technology, China. In May 2012, he moved to the Department of Biomedical Engineering, College of Engineering, Peking University, China. His research focuses on the multifunctional nanoparticles for drug delivery and contrast enhanced imaging. He is a member of editorial board for several international and national journals such as Bioconjugate Chemistry, Theranostics, Journal of Interdisciplinary Nanomedicine, IET Nanobiotechnology, BioMed International Research, Chinese Journal of Nuclear Medicine and Molecular Imaging and so on.He is now a standing committee member of China Association of Medical Ultrasound Equipment and Chinese Association of Ultrasound in Medicine and Engineering, an executive member of the council of Chinese Society for Functional Materials, and a committee member of the Acoustic Society of China. He received many honors and awards including National Natural Science Fund for Outstanding Young Researcher, New Century Talents of Chinese Ministry of Education, Longjiang Scholar Distinguished Professor, and the First Prize of the Natural Science Award of Heilongjiang Province.