1. Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăsti Blvd, 011464 Bucharest, Romania
2. Leather Research Department, Division Leather and Footwear Research Institute, Research and Development National Institute for Textiles and Leather, 93, Ion Minulescu Str., 031215 Bucharest, Romania
3. Department of Analytical and Physical Chemistry, University of Bucharest, 4-12 Regina Elisabeta Bd., 030018 Bucharest, Romania
4. “Horia Hulubei” National Institute of Research and Development for Physics and Nuclear Engineering, 30 Reactorului Str., 077125 Magurele, Romania