Utilizing of Seaweed for Eco-friendly Synthesis of Nickel Cobalt Nanoparticles and Assessment of its Cytotoxic Effects on Human Liver and Colon Cancer Cells.

In this study we used biosynthesis methods to create bimetallic nickel cobalt nanoparticles (Ni-Co NPs) utilizing seaweed. Before exposure to target cells, the characterization of Ni-Co NPs is done by UV-Vis spectrophotometry, EDX, SEM, TEM, the shape of g Ni-Co NPs are polygonal form and its size is measured 38.27 ± 3 nm. The cytotoxic effect of g Ni-Co NPs on HuH7 and HCT cells were determined by MTT and NRU assays. The cytotoxicity of NPs increased in a concentration dependent manner and it showed high cytotoxic effect on HCT-116 cells than HuH-7 cells. We determined IC₅₀ 24 h for HuH-7 and HCT -116 cells at 24 h, it was 65.84 and 24.73 μg/mL, respectively. ROS was elevated at higher concentration of Ni-Co NPs. LPO was increased at 16 μg/mL in HuH-7 cells and 19 μg/mL in HCT-116 cells. CAT was reduced in HCT-116 cells than HuH-7 cells high concentration of NPs. JC-1 staining, the loss of MMP in control, Ni-Co NPs exposed cell were evaluated. In HuH-7 and HCT-116 cells, maximum apoptotic cells were observed at high concentration. Apoptotic genes were expressed in both type cells. The above findings highlight the significance of Ni-Co NPs and useful in a number of cancer treatments.