1. Department of Chemical Engineering, University of Ilorin, P. M. B. 1515, Ilorin, Nigeria
2. School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK
3. Department of Biological Sciences, Nile University of Nigeria, Airport Road Bypass, Abuja, Nigeria
4. Department of Microbiology and Biotechnology, Nile University of Nigeria, Airport Road Bypass, Abuja, Nigeria
5. St. Peter's College, Muenster, Canada
6. Gallogly College of Engineering, University of Oklahoma, Norman, Oklahoma, USA