1. School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
2. School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
3. Biomedical Research Institute, Chonnam National University Hospital, Gwangju, 61469, Republic of Korea
4. Cell Regeneration Research Center, Chonnam National University Hospital, Gwangju, 61469, Republic of Korea