New metal based drug as a therapeutic agent: Spectral, electrochemical, DNA-binding, surface morphology and photoluminescence properties

Cu(II) complexes of non-steroidal anti-inflammatory drug (NSAID) Meloxicam (H2MLX) was synthesized and characterized via spectroscopic and analytical techniques. The thermal behavior of the complex was also analyzed. The photoluminescence properties of the compounds were analyzed under different conditions. The electrochemical properties of both ligand and complex have been analyzed by Cyclic Voltammetry (CV) using glassy carbon electrode. The biological activities of the compounds were evaluated through examining their capacity to bind to fish sperm double strand DNA (FSdsDNA) with absorption spectroscopy and differential pulse voltammetry (DPV). Absorption studies of the interaction of the H2MLX and its Cu(II) complex with FSdsDNA have indicated that these compounds could bind to FSdsDNA, and the binding constants were calculated. The morphology of the FSdsDNA, H2MLX, and Cu(II) complex were analyzed thanks to using scanning electron microscopy (SEM). In the DPV technique, pencil graphite electrode was used as a working electrode. The decrease in the intensity of the guanine oxidation signals was used as an indicator for the interaction mechanism. (C) 2015 Elsevier B.V. All rights reserved.