1. Materials Sciences
Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai, Ibaraki 319-1195, Japan
2. Neutron Science
Laboratory, High Energy Accelerator Research Organization, 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
3. Department
of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), 203-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
4. Comprehensive Research Organization for Science and Society, 162-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
5. Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
6. ERATO
Bio-Nanotransporter
Project, Japan Science and Technology Agency (JST), Kyoto University, Kastura, Nishikyo-ku, Kyoto 615-8510, Japan
7. Neutron
Science Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, United States