1. Department of Instrument Science and Engineering, School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P.R China
2. Department of Biological Sciences, Bayero University Kano, Kano, Nigeria
3. Department of Biological Sciences, Federal University Gashua, Gashua, Nigeria
4. Department of Environmental Management and Toxicology, Federal University Dutse, Dutse, Nigeria