1. Africa Centre of Excellence in Public Health and Toxicological Research, University of Port Harcourt , P.M.B. 5323, Choba 500004, Rivers State , Nigeria
2. Department of Biochemistry, University of Port Harcourt , P.M.B. 5323, Choba 500004, Rivers State , Nigeria
3. African Centre of Excellence for Oilfield Chemicals Research (ACE-CEFOR), University of Port Harcourt , Port Harcourt, Choba 500004 , Nigeria