1. Chemistry Department, Faculty of Science, King Khalid University, Abha 9004, Kingdom of Saudi Arabia
2. Applied Research Sector, Egyptian Organization for Biological Products and Vaccines (VACSERA Holding Company), 51 Wezaret El-Zeraa St., Agouza, Giza, Egypt, Phone: +966-7-241-8343, Fax: +966-7-2417637, e-mail: afazary@kku.edu.sa; aefazary@gmail.com
3. Department of Chemistry, Faculty of Science, Ain Shams University, Cairo 11566, Egypt