Carbon nanotube bundled multi-walled structures are widely used in various advanced technological applications due to their unique mechanical, electrical, and thermal properties. In electronics, they serve as conductive additives in composites, enhancing the performance of batteries, supercapacitors, and flexible displays. Their high strength and lightweight nature make them ideal for reinforcing materials in aerospace and automotive industries, improving durability and fuel efficiency. In the field of energy, they are utilized in solar cells and fuel cells to increase efficiency and conductivity. Additionally, their large surface area and porosity make them effective in filtration systems for water purification and gas separation. In biomedical applications, they are explored for drug delivery systems and biosensors due to their ability to interact with biological molecules.