1. Northwestern Argonne Institute of Science and Engineering, Northwestern University, 2205 Tech Drive Suite 1-160, Evanston, 60208 Illinois, United States
2. Mathematics and Computer Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, 60439 Illinois, United States
3. NanoDynamicsLab, Laboratory of Biophysics, Wageningen University, Stippeneng 4, Wageningen 6708 WE, The Netherlands
4. Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Van der Maasweg 9, Delft 2629 HZ, The Netherlands
5. Department of Electrical Engineering, Uppsala University, Lägerhyddsvägen 1, 752 37, SE-751 03 Uppsala, Sweden