1. School of Biomedical Engineering, McMaster University, Hamilton, Ontario L8S 4L8, Canada
2. Canadian Centre for Electron Microscopy, McMaster University, Hamilton, Ontario L8S 4L8, Canada
3. Department of Engineering Physics, McMaster University, Hamilton, Ontario L8S 4L8, Canada
4. Department of Mechanical, Materials and Aerospace Engineering, School of Engineering, University of Liverpool, Liverpool L69 3BX, United Kingdom
5. Department of Physics, School of Physical Sciences, University of Liverpool, Liverpool L69 3BX, United Kingdom
6. Department of Materials Science and Engineering, McMaster University, Hamilton, Ontario L8S 4L8, Canada