1. Graduate School of Engineering and Science, Shibaura Institute of Technology, Koto, Tokyo, Japan
2. Faculty of Medical Science, Juntendo University, Urayasu, Chiba, Japan
3. Research Center, Toyobo Company Ltd., Otsu, Shiga, Japan
4. Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
5. Biotechnology Research Laboratory, Toyobo Company Ltd., Tsuruga, Fukui, Japan