1. Department of Molecular
Science and Technology, Ajou University, Suwon 443-749, Republic of Korea
2. Department of Electrical
and Biological Physics, Kwangwoon University, Seoul 138-701, Republic of Korea
3. Division of Bioengineering,
College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of Korea
4. College of Medicine, Dongguk University, Goyang 10326, Republic of Korea