1. Institute of Bioengineering, NCCR in Chemical
Biology, Institute of Chemical Sciences and Engineering (ISIC), Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
2. Department of NanoBiophotonics, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
3. Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo,
Bunkyo-ku, Tokyo 113-8654, Japan