1. Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom.
2. Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Japan.
3. Innovation Research Center for Fuel Cells, The University of Electro-Communications, Tokyo, Japan.
4. Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, Japan.