About the Authors

Il-Kyu Choi

Affiliation Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea

Yan Li

Affiliation Graduate Program for Nanomedical Science, Yonsei University, Seoul, Korea

Eonju Oh

Affiliation Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea

Jaesung Kim

Affiliation Department of Pharmaceutics and Pharmaceutical Chemistry, Center for Controlled Chemical Delivery, University of Utah, Salt Lake City, Utah, United States of America

Chae-Ok Yun

chaeok@hanyang.ac.kr

Affiliation Department of Bioengineering, College of Engineering, Hanyang University, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: COY. Performed the experiments: IKC YL EO JK. Analyzed the data: IKC COY. Contributed reagents/materials/analysis tools: COY. Wrote the paper: IKC COY.