[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Jilin Univ, Hosp 2, Dept Radiol, Changchun 130041, Peoples R China
[5] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
[6] Univ N Carolina, Joint Dept Biomed Engn, Chapel Hill, NC USA
[7] North Carolina State Univ, Raleigh, NC 27695 USA