Zhang Guo-Jun, Tanii Takashi, Zako Tamotsu, Hosaka Takumi, Miyake Takeo, Kanari Yuzo, Funatsu Takashi, Ohdomari Iwao
Nanotechnology Research Center and Institute of Biomedical Engineering, Waseda University, Waseda Tsurumaki-cho 513, Shinjuku-ku, Tokyo 162-0041, Japan.
Small. 2005 Aug;1(8-9):833-7. doi: 10.1002/smll.200500091.