1. Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
2. School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
3. Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
4. Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H12, Islamabad, Pakistan
5. Department of Zoology, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia