Carbon nanotubes (CNTs) are cylindrical molecules composed of one or more layers of graphene, a two-dimensional carbon material. One of the most prominent features of carbon nanotubes is their special mechanical strength, which makes them one of the strongest materials known to humans. CNTs also have excellent conductivity, and they can carry a large amount of current without overheating, making them very suitable for use as wires, electrodes, and other electronic components. In addition, CNTs have a high surface area volume ratio, which means they can be used in applications that require efficient mass transfer, such as fuel cells, batteries, and sensors. Carbon nanotubes have the potential to become biomaterials for drug delivery and tissue engineering. Their small size and biocompatibility make them attractive for targeting specific tissues and delivering drugs directly to diseased cells while minimizing side effects.