* Corresponding authors

^a Department of Mathematics and Statistics, University of Melbourne, Parkville 3010, Australia

^b Particulate Fluids Processing Centre, University of Melbourne, Parkville 3010, Australia

^c School of Chemistry, Monash University, Clayton 3800, Australia
E-mail: rico.tabor@monash.edu
Fax: +61 3 9905 4597
Tel: +61 3 9905 4558

^d School of Chemistry, University of Melbourne, Parkville 3010, Australia

^e Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton 3168, Australia

^f Department of Chemical and Biomolecular Engineering, University of Melbourne, Parkville 3010, Australia

^g Faculty of Life and Social Sciences, Swinburne University of Technology, Hawthorn 3122, Australia