1. School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
2. The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology The University of New South Wales Sydney NSW 2052 Australia
3. Dementia Research Centre Department of Biomedical Science Faculty of Medicine and Health Sciences Macquarie University Sydney NSW 2109 Australia
4. Electron Microscopy Unit Mark Wainwright Analytical Centre The University of New South Wales Sydney NSW 2052 Australia
5. Solid State & Elemental Analysis Unit Mark Wainwright Analytical Centre The University of New South Wales Sydney NSW 2052 Australia