1. Department of Chemistry, Graduate School; Kyung Hee University; Yongin-si 446-701 Republic of Korea
2. Department of Applied Chemistry and Institute of Natural Sciences; Kyung Hee University; Yongin-si 446-701 Republic of Korea
3. Department of Physiology and Department of Biomedical Sciences; Ajou University School of Medicine; Suwon 443-749 Republic of Korea