1. Computational and Bio-Simulation Research Group, University of Calabar, Calabar 540221, Nigeria
2. Department of Pure and Applied Chemistry, University of Calabar, Calabar 540221, 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 Biochemistry, University of Calabar, Calabar 540221, Nigeria
5. Department of Chemistry, Smt. Devkiba Mohansinhji, Chauhan College of Commerce and Science, University of Mumbai, Silvassa 396, India
6. Department of Chemical Sciences, University of Johannesburg, Auckland Park 2006, South-Africa