1. Centre for High Performance Polymers, The University of Queensland, St Lucia QLD 4072, Australia, Centre for Nutrition and Food Sciences, The University of Queensland, St Lucia QLD 4072, Centre for Magnetic Resonance, The University of Queensland, St Lucia QLD 4072, Australia, and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia QLD 4072, Australia