1. Physics Division, Department of Basic Sciences and Social Sciences, School of Technology, North-Eastern Hill University, Shillong, Meghalaya 793022, India
2. Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, 1888 Adama, Ethiopia
3. Department of Prosthodontics, Saveetha Dental College & Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai, Tamil Nadu 600077, India
4. Department of Nanotechnology, School of Technology, North Eastern Hill University, Shillong, Meghalaya 793022, India