1. Department of Chemical & Biological Engineering, ChELSI Institute, University of Sheffield, Sheffield S1 3JD, England
2. Australian Institute
for Bioengineering and Nanotechnology, University of Queensland, St Lucia, Queensland 4072, Australia
3. Department of Chemical Engineering & Biotechnology, University of Cambridge, Cambridge CB2 3RA, England
4. Diamond Light Source, Didcot, Oxfordshire, OX11 0QX, England