Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278-8510, Japan, Institute of Colloid and Interface Science and Faculty of Engineering, Science University of Tokyo, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-0825, Japan, and School of Chemical Engineering and Material Science, The University of Oklahoma, 100 E. Boyd, Norman, Oklahoma 73019(2000-11-28時点)