1. Department of Chemistry, Graduate School; Chosun University; Gwangju 61452 Republic of Korea
2. Department of Chemistry; University of Ulsan; Ulsan 44610 Republic of Korea
3. Department of Bio-Nano Chemistry; Wonkwang University; Jeonbuk 54538 Republic of Korea
4. Department of Chemistry Education; Chosun University; Gwangju 61452 Republic of Korea