1. CÚRAM SFI Research Centre for Medical Devices National University of Ireland Galway H91W2TY Ireland
2. University of the Basque Country Department of Mining‐Metallurgy Engineering and Materials Science and POLYMAT Barrio Sarriena Bilbao 48013 Spain
3. University of Limerick Department of Physics Limerick V94 T9PX Ireland
4. Queen Mary University of London Materials Research Institute and School of Biological and Chemical Sciences Mile End Road London E1 4NS UK