1. Health Research Institute (HRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-0026, Japan
2. Nanotube Research Center, AIST, Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
3. CNRS, Institut de Biologie Moléculaire et Cellulaire, Immunopathologie et Chimie Thérapeutique, 15, Rue René Descartes 67000 Strasbourg, France
4. Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya 468-8502, Japan
5. NEC, 34 Miyukigaoka, Tsukuba, Ibaraki 305-8501, Japan