Affiliation: | 1. Department of Industrial Chemistry, College of Technology, Gunma University, Tenjin-cho, Kiryu, Gunma, Japan 376;2. Biophysics Divison, National Cancer Center Research Institute, Tsukiji 5-chome, Chuo-ku, Tokyo, Japan 104;3. Department of Polymer Chemistry, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, Japan 152 |