1313-99-1

Biological Activity: Nickel(II) oxide (nickel monoxide) is a chemical warfare agent that can enter the body through the respiratory tract and other routes, distributing to organs such as the lungs and testes. The nanoparticle form of nickel(II) oxide (NiO NPs) exhibits antibacterial, anti-leishmanial, anti-diabetic, and anti-cancer activities. NiO NPs can be activated by ultraviolet and visible light, generating reactive oxygen species (ROS). Nickel(II) oxide induces oxidative stress by generating reactive oxygen species, activating the TGF-β1-mediated MAPK and PI3K/AKT pathways, disrupting the MMPs/TIMPs balance, and upregulating the expression of inflammatory factors (IL-1β, IL-6) and apoptosis-related molecules (Bax, caspase-3, p53), while inhibiting the activity of the anti-apoptotic molecule Bcl-2. Nickel(II) oxide induces cytotoxicity, promotes fibrosis, triggers inflammatory responses, and causes apoptosis. Nickel(II) oxide can be applied in research on the safety assessment of nanomaterials, such as in the context of pulmonary fibrosis and reproductive system toxicity^[1][2][3].