1. Department of Chemistry, The University of Winnipeg, 515 Portage Ave. Winnipeg, MB, Canada R3B 2E9
2. Department of Chemistry, The University of Manitoba, Winnipeg, MB, Canada R3N 2T2
3. Department of Biology, The University of Winnipeg, 515 Portage Ave. Winnipeg, MB, Canada R3B 2E9
4. Department of Biochemistry, University of Nigeria, Nsukka, Nigeria