Nanoshells are a type of nanoparticle composed of a dielectric core coated with a thin metallic shell. These particles can be designed to absorb specific wavelengths of light, making them useful for applications like photothermal therapy. In photothermal therapy, nanoshells are injected into the body and accumulate in the tumor. When exposed to near-infrared light, the nanoshells convert the light into heat, effectively destroying the cancerous cells.
