1. Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
2. Biophysics Group, Department of Physics, Faculty of Science, Mansoura University, Mansoura, Egypt
3. School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
4. Leeds Institute of Medical Research, University of Leeds, St. James’s University Hospital, Leeds LS9 7TF, United Kingdom
5. School of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom
6. Division of Oral Biology, School of Dentistry, University of Leeds, Leeds LS2 9LU, United Kingdom