1. a College of Pharmacy, Nihon University , 7-7-1, Narashinodai Funabashi-shi Chiba 274, Japan
2. b Machine shop at Research Institute of Science and Technology, Nihon University , 7-24-1, Narashinodai Funabashi-shi Chiba 274, Japan
3. c Laboratory of Biophysical Chemistry , National Heart, Lung, and Blood Institute , National Institutes of Health Building 10, Room 7N322, Bethesda, MD, 20892-1676, U.S.A.