Hydroxy purified single-walled carbon nanotubes are widely used in the field of nanotechnology due to their unique properties. They are employed in the development of high-strength composite materials, enhancing the mechanical and thermal properties of polymers, metals, and ceramics. In electronics, these nanotubes are utilized to create conductive films, flexible displays, and advanced sensors due to their excellent electrical conductivity. They also play a significant role in energy storage applications, such as in lithium-ion batteries and supercapacitors, where they improve charge capacity and efficiency. In the biomedical field, they are explored for drug delivery systems, bioimaging, and tissue engineering, leveraging their ability to interact with biological systems. Additionally, their use in environmental applications includes water purification and pollutant detection, taking advantage of their high surface area and adsorption capabilities.