1. Center for Infection and Immunity, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangdong, P.R. China
2. Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangdong, P.R. China
3. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, P.R. China