1. Department of Materials Science and Engineering, African University of Science and Technology (AUST), Abuja, Nigeria
2. Materials Science and Engineering Program, Department of Mechanical Engineering, Worcester Polytechnic Institute (WPI), Worcester, MA, USA
3. Department of Physics, University of Ibadan, Ibadan, Nigeria
4. East African Institute of Fundamental Research (EAIFR), University of Rwanda, Kigali, Rwanda
5. Department of Theoretical and Applied Physics, African University of Science and Technology (AUST), Abuja, Nigeria
6. Department of Biomedical Engineering, Worcester Polytechnic Institute (WPI, Worcester, MA 01609, USA