1. Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca, Romania;
2. Department of Dermopharmacy and Cosmetics, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca, Romania;
3. Department of Drug Analysis, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca, Romania;
4. Electron Microscopy Center, Babeş-Bolyai University, Cluj-Napoca, Romania