1. Department of Chemistry, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
2. Department of Biology, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
3. Department of Glass Research, National Research Centre, Dokki, Cairo 12622, Egypt
4. Department of Inorganic Chemistry, National Research Centre, Dokki, Cairo 12622, Egypt
5. Department of Ceramics, National Research Centre, Dokki, Cairo 12622, Egypt
6. Zayed Centre for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates