1Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Agulu Campus, Anambra State, Nigeria, E-mail: agu.r@hotmail.com
2Biopharmaceutics and Drug Delivery Laboratory, College of Pharmacy, 5968 College Street, PO Box 15000, Dalhousie University, B3H 4R2, Halifax, NS, Canada, E-mail: agu.r@hotmail.com
3Department of Chemical Pathology, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Anambra State, Nigeria, E-mail: agu.r@hotmail.com