1. Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, U.K.
2. Nanoscience Center and Department of Chemistry, University of Jyväskylä, Jyväskylä 40014, Finland
3. Department of Physics, Stanford University, Stanford, California 94305, United States
4. RIKEN Spring-8 Center, 1-1-1 Kouto, Sayo, Sayo, Hyogo 679-5148, Japan
5. Department of Chemistry, Stanford University, Stanford, California 94305, United States
6. Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot OX11 0DE, U.K.
7. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577, Japan
8. Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshidakonoe, Sakyo, Kyoto 606-8501, Japan
9. Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Sayo, Hyogo 679-5198, Japan