Dr. Ksiksi Regaya: Associate Professor in chemistry, The higher institute for preparatory studies in biology/geology La Soukra, University of Carthage. Tunisia Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, Tunisia. Eighteen years of teaching experience. 2012-2013 Member of the committee for the reform of preparatory school chemistry programs. Since 2012 Member of the commission and Coordinator of the Entrance Exam to Veterinary Studies. 2014-2020 Member of the scientific council of ISEP BG Soukra. 2019-2020 Member of the COVID 19 crisis unit at ISEP BG Soukra. 2019-2022 Team leader in a federated research project. 20 years of experience in studying decavanadates compounds. Author and co-authored more than 19 original papers. Supervision of 4 research masters and two doctorates