Despite the challenges, nanotechnology is making strides in making difficult-to-reach areas more accessible. For instance, targeted drug delivery systems are being developed to treat conditions such as brain tumors, where traditional methods are ineffective due to the blood-brain barrier. Similarly, nanomaterials are being used to clean up oil spills in oceans and to filter pollutants from air and water in hard-to-reach locations. The ongoing advancements in nanofabrication and characterization techniques are continually expanding the potential applications of this technology.
