1. Electronic Engineering and Computer Science, Queen Mary University of London, London, U.K.
2. Department of Electronic, Electrical, and Systems Engineering, University of Birmingham, Birmingham, U.K.
3. Cell Biology and Cutaneous Research of Blizard Institute, Queen Mary University of London (QMUL), London, U.K.
4. James Watt School of Engineering and deputy head of the Communication Sensing and Imaging group, University of Glasgow, U.K.