1. Department of Physics, Department of Biology, The Russell Berrie Nanotechnology Institute, Biotechnology and Food Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel, Bio-Rad Haifa, Ltd., Gutwirth Science Park, Technion City, Haifa 32000, Israel, Department of Molecular Microbiology and Biotechnology, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel