1. Department of Physics, Faculty of Exact Sciences, El Oued University, El Oued, Algeria
2. Lab. VTRS, Faculty of Technology, El Oued University, El Oued, Algeria
3. Laboratory of Biotechnology, Biomaterial and Condensed Matter, Faculty of Technology, El Oued University, El Oued, Algeria
4. Department of Process Engineering and Petrochemistry, Faculty of Technology, University of Echahid Hamma Lakhdar El Oued, El Oued, Algeria