1 Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow G12 8TA, UK. Electronic address: mattthew.sinton@glasgow.ac.uk.
2 School of Chemistry, University of Edinburgh, Edinburgh, UK.
3 Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK; Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK.
4 Aarhus University, Aarhus, Denmark.
5 Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, NJ, USA.