1. UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London, United Kingdom, NW3 2PF
2. Université Paris Sud, Orthopedic Surgery, Hôpital Saint Antoine, 184, Rue du Faubourg-Saint-Antoine, Paris, France, 75012
3. Department of Chemistry, University College London, 20 Gordon Street, London, United Kingdom, WC1H 0AJ