1. Department of Chemistry; Quaid-i-Azam University; Islamabad Pakistan
2. Department of Chemistry; Allama Iqbal Open University; Islamabad Pakistan
3. Department of Physiology; University of Sindh; Jamshoro Pakistan
4. Department of Biology, College of Natural Sciences; Kongju National University; Gongju Republic of Korea
5. School of Chemistry and Physics; University of KwaZulu-Natal; Durban South Africa