1. Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, D69120 Heidelberg, Germany
2. Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
3. Institut für Festkörperphysik, Universität Bremen, Otto-Hahn-Allee NW1, D28359 Bremen, Germany
4. Research Initiative for Supra-Materials, Shinshu University, Wakasato, Nagano 380-8553, Japan
5. Center for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, Kyoto 606-8501, Japan