1. Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan
2. Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
3. Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
4. Synergy Institute for Futuristic Mucosal Vaccine Research and Development, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
5. Department of Immunology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan