| Autor: |
Hangan AC; Department of Inorganic Chemistry, Faculty of Pharmacy, 'Iuliu-Hațieganu' University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania., Lucaciu RL; Department of Pharmaceutical Biochemistry and Clinical Laboratory, Faculty of Pharmacy, 'Iuliu-Hațieganu' University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania., Turza A; National Institute for R&D of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania., Dican L; Department of Medical Biochemistry, Faculty of Medicine, 'Iuliu-Hațieganu' University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania., Sevastre B; Paraclinic/Clinic Department, Faculty of Veterinary Madicine, University of Agricultural Science and Veterinary Medicine, 400372 Cluj-Napoca, Romania., Páll E; Paraclinic/Clinic Department, Faculty of Veterinary Madicine, University of Agricultural Science and Veterinary Medicine, 400372 Cluj-Napoca, Romania., Oprean LS; Department of Inorganic Chemistry, Faculty of Pharmacy, 'Iuliu-Hațieganu' University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania., Borodi G; National Institute for R&D of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania. |
| Abstrakt: |
The discovery of a new non-toxic metal complex with biological activity represents a very active area of research. Two Cu +2 complexes, [Cu 4 (L1) 4 (OH) 4 (DMF) 2 (H 2 O)] (C1) (HL1 = N-(5-ethyl-[1,3,4]-thiadiazole-2-yl)-benzenesulfonamide) and [Cu(L2) 2 (phen)(H 2 O)] (C2) (HL2 = N-(5-(4-methylphenyl)-[1,3,4]-thiadiazole-2-yl)-naphtalenesulfonamide), with two new ligands were synthesized. The X-ray crystal structures of the complexes were determined. In both complexes, Cu +2 is five-coordinated, forming a CuN 2 O 3 and CuN 4 O chromophore, respectively. The ligands act as monodentate, coordinating the metal ion through a single N thiadiazole atom; for the two complexes, the molecules from the reaction medium (phenantroline, dimethylformamide and water) are also involved in the coordination of Cu +2 . The complexes have a distorted square pyramidal square-planar geometry. The compounds were characterized by FT-IR and UV-Vis spectroscopy. Using the microdilution method, the antibacterial activity of the complexes was determined against four Gram-positive and two Gram-negative bacteria, with Gentamicin as the positive control. Cytotoxicity studies were carried out on two tumor cell lines (HeLa, DLD-1) and on a normal cell line (HFL1) using the MTT method and Cisplatin as a positive control. Flow cytometric assessment of apoptosis induced by the complexes on the three cell lines was also performed. Both complexes present in vitro biological activities but complex C2 is more active. |
