1. Department of Materials
Chemistry, Faculty of Science and Technology, Ryukoku University, Seta, Otsu, Shiga 520-2194, Japan
2. Department of Biomolecular
Engineering, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
3. Nakamura Laboratory, RIKEN Research Cluster for Innovation, 2-1 Hirosawa,
Wako, Saitama 351-0198, Japan