1. Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria
2. Department of Mathematics, University of Calabar, Calabar, Nigeria
3. Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
4. Department of Chemical Sciences, University of Johannesburg, Pretoria, South Africa
5. School of Chemistry, University of Leeds, Leeds LS2 9JT, UK