1. Department of Inorganic Chemistry; National Research Centre; 33 El Bohouth St. (former Tahrir St.) 12622 Dokki Giza Egypt
2. Higher Institute of Engineering and Technology; kilo 112 Cairo Alex Agricultural Road Tanta 31739 Egypt
3. Department of Microbial Chemistry; National Research Centre; 33 El Bohouth St. (former Tahrir St.) 12622 Dokki Giza Egypt
4. Department of Glass; National Research Centre; 33 El Bohouth St. (former Tahrir St.) 12622 Dokki Giza Egypt