1. Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Republic of Korea
2. Department of Dental Biomaterials and Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Republic of Korea
3. Biomedical, Dental Materials and Engineering, Department of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan