1. Department of Materials
Science and Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea
2. Department of Organic Materials and Fiber
Engineering, Soongsil University, 369 Sangdo-ro,
Dongjak-gu, Seoul 156-743, Korea
3. Department of Chemistry and Recombinant Protein Expression
Center, Sejong University, 98 Gunja-Dong, Gwangjin-Gu, Seoul 143-747, Korea