1. Laboratoire de Chimie Appliquée University of Sfax, Faculté des Sciences de Sfax Sfax Tunisia
2. Faculty of Dental Medicine ‘Appolonia’ University from Iasi Iasi Romania
3. Faculty of Chemical Engineering and Protection of the Environment, Department of Natural and Synthetic Polymers Gheorghe Asachi’ Technical University Iaşi Romania
4. Academy of Romanian Scientists Bucharest Romania
5. Laboratoire de Photochimie et d'Ingénierie Macromoléculaires University of Haute Alsace Mulhouse France