1. Department of Global Public Health, Karolinska Institutet, 17177 Stockholm, Sweden
2. Science for Life Laboratory, Division of Nanobiotechnology, Department of Protein Science, KTH Royal Institute of Technology, 17165 Stockholm, Sweden
3. Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17165 Stockholm, Sweden
4. Hahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
5. Laboratory for MEMS Applications, IMTEK–Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79108 Freiburg, Germany