Cytotoxicity and Antibacterial Studies of Novel Heterocyclic Pyridinethiophene Derivative and Its Metal Complexes

Abstract

Tranistion metals [Co, Ni, and Cu] complexes of pyridine-thiophene derivative ligand 2-((E)-2-((5-methylthiophen-2-yl) methylene)hydrazinyl)-4-methyl-6-phenylpyridine-3-carbonitrile(MTHPC) have been synthesized and characterized with different spectral investigations viz. UV-Vis, FT-IR, 1H-NMR, and ESR. The ligand and metal complexes were screened for in-vitro cytotoxicity studies against two carcinoma cell lines A549 (Lung carcinoma cells) and HepG2 (Hepatocellular carcinoma cell). The results were found to possess cytotoxic effect. Nickel complex had shown high potent cytotoxic effect for A549 cell lines and Copper complex shown high cytotoxic effect for HepG2 cell lines. The ligand and metal complexes were tested in vitro against Gram -ve bacteria such Pseudomonas desmolyticum, Escherichia coli, and Klebsiella aerogenes, as well as Gram +ve bacteria like Staphylococcus aureus. Copper and Cobalt complex has modest antibacterial action at increasing concentrations, but Nickel complex has significant antibacterial activity.