Short carboxyl single-walled carbon nanotubes are widely used in various advanced applications due to their unique properties. In the field of electronics, they are utilized to enhance the conductivity and performance of nanocomposites, making them ideal for flexible displays, sensors, and transistors. In biomedical applications, these nanotubes are employed for drug delivery systems, where their functionalized surface allows for targeted delivery of therapeutic agents to specific cells or tissues. They also serve as contrast agents in imaging techniques and are explored for use in tissue engineering scaffolds due to their biocompatibility and mechanical strength. In energy storage, they are integrated into supercapacitors and batteries to improve energy density and charge-discharge rates. Their high surface area and electrical conductivity make them suitable for use in electrodes. Additionally, they are used in environmental applications, such as water purification systems, where they act as efficient adsorbents for removing heavy metals and organic pollutants from wastewater. Their versatility and functional properties make them a valuable material in cutting-edge technologies.