1. Energy Materials Laboratory, Physics Department, School of Sciences and Engineering The American University in Cairo New Cairo Egypt
2. Department of Microbiology and Immunology, Faculty of Pharmacy Assiut University Assiut Egypt
3. Biology department, School of Sciences and Engineering The American University in Cairo New Cairo Egypt
4. Max Planck institute for Terrestrial Microbiology Marburg Germany
5. Department of Medical Microbiology and Immunology, Faculty of Medicine Assiut University Assiut Egypt