1. Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
2. Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
3. Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania