Abstract
Abstract In this research, we produced copper oxide nanoparticles (CuO NPs) using extracts from the entire above-ground portion of plants of genus Inula (Inula graveolens). The synthesis of CuO NPs was verified through various physicochemical analytical methods, including UV–visible, Fourier transform infrared, and transmission electron microscopy. The CuO NPs were found to be around 20 nm in size and spherical in shape. Subsequently, the synthesized compounds were evaluated for their anticancer properties. After treating A549 cells with CuO NPs at concentrations of 15 and 30 μg, we examined their cytotoxicity, lipid peroxidation activity (malondialdehyde level), and antioxidant activity (catalase, superoxide dismutase, and glutathione levels). Additionally, we analyzed the expression of apoptotic marker genes (p53, caspase-3, and caspase-9), cytokine levels (IL-6 and TNF-α), and DNA fragmentation. Our findings demonstrated that CuO NPs enhanced the expression of apoptotic genes, suggesting that phytochemical-derived NPs from Inula extracts induce apoptosis by upregulating tumor suppressor genes and downregulating oncogenes in A549 cells. Furthermore, CuO NPs exhibited higher susceptibility toward B. subtilis and S. aureus compared to ampicillin. Using the response surface methodology, we determined that CuO NPs are effective adsorbents for removing Pb2+ ions from aqueous solutions, making them promising for environmental applications. Overall, our results indicate that CuO NPs have potential as antimicrobial, antioxidant, and anticancer agents and as efficient adsorbents.
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