1. Department of Fine Chemical Engineering and Applied Chemistry; College of Engineering; Chungnam National University; Daejeon 305-764 Korea
2. Next-Generation Pharmaceutical Research Center; Korea Institute of Toxicology, KRICT; 141 Gajeong-ro Yuseong-gu Daejeon 305-343 Korea
3. Human and Environmental Toxicology Program; University of Science and Technology; Daejeon 305-350 Republic of Korea