1. Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea.
2. Materials Chemistry Lab, Seoul National University, Seoul 151-742, Korea.
3. Laboratory of Molecular Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 139-706, Korea.
4. Polymeric and Soft Nanomaterials, Seoul National University, Seoul 151-742, Korea.
5. Diversity Oriented Synthesis and Chemical Biology Lab, Seoul National University, Seoul 151-742, Korea.