1. Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria
2. Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar, Nigeria
3. Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
4. Department of Chemical Sciences, Federal University of Wukari, Wukari, Taraba State, Nigeria
5. Department of Mathematics, Faculty of Physical Sciences, University of Calabar, Calabar, Nigeria
6. Department of Chemical Sciences, University of Johannesburg, South Africa