1. School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
2. Microscopy Core Facility, Institute of Molecular Biology, Mainz, Germany
3. Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD 4072, Australia
4. Department of Chemical Engineering, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash University, Clayton, VIC 3800, Australia