1. Department of Materials, University of Manchester, MECD, Building A, Manchester, M1 7HL, UK
2. Basic Science Department, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam 34221, Kingdom of Saudi Arabia
3. Photon Science Institute and The Henry Royce Institute, University of Manchester, Manchester, M13 9PL, UK
4. BioAFM Facility, Faculty of Biology, Medicine and Health, Stopford Building, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
5. Department of Electrical and Electronic Engineering, University of Manchester, Manchester M13 9PL, UK