1. Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
2. Project Research Center for Fundamental Sciences Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
3. Department of Chemical Sciences and Task Force on Microbiome Studies University of Naples Federico II Via Cinthia 4 80126 Naples Italy
4. CNR Institute for Polymers, Composites and Biomaterials IPCB Via P. Gaifami 18 95126 Catania Italy
5. Department of Chemical Sciences University of Naples Federico II Via Cinthia 4 80126 Naples Italy
6. Laboratory of Vaccine Materials Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System National Institutes of Biomedical Innovation, Health and Nutrition Osaka 567-0085 Japan
7. Faculty of Science and Engineering Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
8. Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama Kanagawa 223-8522 Japan
9. International Research and Development Center for Mucosal Vaccines The Institute of Medical Science The University of Tokyo 4–6-1 Shirokanedai, Minato-ku Tokyo 108-8639 Japan