1. a Nanoscience Research Unit, Department of Industrial Chemistry, Federal University Oye-Ekiti, Oye-Ekiti, Ekiti State P.M.B 373, Nigeria
2. b Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
3. c Department of Chemistry, Federal University Dutse, Dutse, Jigawa State PMB 7156, Nigeria
4. d Department of Plant Science and Biotechnology, Federal University Oye-Ekiti, Oye-Ekiti, Ekiti State, Nigeria
5. e Department of Industrial Chemistry, University of Ilorin, Ilorin, Nigeria