1. School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
2. Trauma and Orthopaedic Research Laboratory, Department of Surgery, The Medical School, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
3. Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
4. Department of Immunology and Infectious Disease, College of Health & Medicine, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
5. School of Engineering, College of Engineering and Computer Science, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
6. Department of Surgery, The Canberra Hospital, Garran, Australian Capital Territory 2605, Australia
7. Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States