1. Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), D-76049 Karlsruhe, Germany
2. Skaggs School of Pharmacy and Pharmaceutical Sciences, Center for Discovery and Innovation in Parasitic Diseases, University of California San Diego, La Jolla, California 92093, United States
3. Institute of Nanotechnology, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
4. Institute of Biological and Chemical Systems, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
5. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States