1. Department of Biomedical Engineering,
College of Health Science, Korea University San 1, Jeongneung-3-dong,
Seongbuk-gu, Seoul 136-703, Korea
2. Department of Interdisciplinary Bio/Micro System Technology, College of Engineering
3. Department of Biomedical Engineering, College of Medicine, Korea University 126-1, Anam-5-ga, Seongbuk-gu, Seoul 136-705, Korea
4. Analysis Development Team, Nong Shim Co., LTD, 370-1 Shindaebang-Dong, Dongjak-gu, Seoul 156-709, Korea
5. Department of Chemical and Biological Engineering, College of Engineering