MWCNTs can be employed in cancer treatment in several ways: 1. Drug Delivery: MWCNTs can be functionalized to carry and deliver anticancer drugs directly to the tumor site, minimizing damage to healthy tissues. 2. Photothermal Therapy: MWCNTs can absorb near-infrared light and convert it into heat, effectively killing cancer cells through hyperthermia. 3. Imaging: MWCNTs can be used as contrast agents in imaging techniques to help visualize tumors.