1. Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education & Chemical Biology Key Laboratory of Hebei Province; College of Chemistry & and Environmental Science; Hebei University; Baoding 071002 P. R. China
2. CAS Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province & Division of Functional Materials and Nanodevices; Ningbo Institute of Materials Technology and Engineering; Chinese Academy of Sciences; Ningbo 315201 P. R. China
3. Shanghai Synchrotron Radiation Facility; Shanghai Institute of Applied Physics; Chinese Academy of Sciences; Shanghai 201204 P. R. China
4. Department of Medical Imaging; Jinling Hospital; School of Medicine; Nanjing University; Nanjing 210002 P. R. China