Nanotubes are tiny cylindrical structures made of carbon atoms arranged in a hexagonal pattern. They can be single-walled or multi-walled, with diameters as small as one nanometer. Due to their unique structure, nanotubes exhibit remarkable strength and electrical conductivity, making them useful in various applications, including electronics and materials science. These structures are often studied in the field of nanotechnology, which focuses on manipulating matter at the atomic and molecular scale. Researchers are exploring their potential in areas such as energy storage, composite materials, and medical applications, highlighting their versatility and importance in advancing technology.