1. School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
2. College of Medical Technology, Peking University Health Science Center, Beijing 100871, China
3. Huazhong University of Science and Technology, Wuhan 430074, Hubei China
4. School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
5. Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Emory University School of Medicine, Atlanta, Georgia 30322, United States
6. Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States