1. Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
2. Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
3. International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
4. NUANCE Center, Northwestern University, Evanston, Illinois 60208, United States
5. Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
6. School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
7. Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea
8. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, Chengdu 610065, China
9. Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
10. Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford University, Palo Alto, California 94304, United States
11. Department of Radiology, Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, Stanford University, Palo Alto, California 94304, United States
12. Department of Bionano Engineering and Bionanotechnology, Hanyang University, Ansan 15588, Republic of Korea
13. Department of Biomicrosystem Technology, Korea University, Seoul 02841, Republic of Korea