1. School of Engineering, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia
2. Centre for Additive Manufacturing, RMIT University, 58 Cardigan Street, Melbourne, Victoria 3001, Australia
3. School of Physics, The University of Melbourne, Tin Alley, Parkville, Melbourne, Victoria 3010, Australia
4. National Vision Research Institute, Australian College of Optometry, Carlton, Victoria 3010, Australia
5. RMIT Microscopy and Microanalysis Facility, 124 La Trobe Street, Melbourne, Victoria 3001, Australia
6. School of Science, RMIT University, 124 La Trobe Street, Melbourne, Victoria 3001, Australia