1. Department of Biochemistry, Abdul Wali Khan University, Mardan, 23200 Khyber Pakhtunkhwa, Pakistan
2. Department of Chemistry, Division of Science and Technology, University of Education, 54770 Lahore, Pakistan
3. H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, 75270 Karachi City, Pakistan