1. Biophysics Group, Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK
2. UCL Healthcare Biomagnetics and Nanomaterials Laboratories, 21 Albemarle Street, London, W1S 4BS, UK
3. Division of Infection and Immunity, University College London, UK
4. Biotherapeutics and Advanced Therapies, Scientific Research and Innovation, Medicines and Healthcare Products Regulatory Agency, South Mimms, UK
5. Department of Medical Physics and Biomedical Engineering, University College London, UK
6. Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore
7. Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, UK