1. Molecular
Cell Biomechanics Laboratory, Departments of Bioengineering and Mechanical
Engineering, University of California Berkeley, 208A Stanley Hall, Berkeley, California 94720-1762, United States
2. Department
of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
3. Molecular
Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States