While the benefits are numerous, nanotechnology also presents unforeseen risks. One major concern is the potential toxicity of nanoparticles. Because they are so small, nanoparticles can easily penetrate biological membranes, including the blood-brain barrier. This raises questions about their long-term impact on human health and the environment. For instance, the inhalation of certain nanoparticles could lead to respiratory issues, while their accumulation in water bodies could disrupt aquatic ecosystems. Furthermore, the rapid advancement in nanotechnology has outpaced the development of regulatory frameworks. This gap leaves room for ethical and safety issues to arise, such as the misuse of nanotechnology in surveillance or military applications. The lack of comprehensive guidelines makes it challenging to control and monitor the deployment of nanotechnology effectively.
