abstract:A nanoshell, or rather a nanoshell plasmon, is a type of spherical nanoparticle consisting of a dielectric core which is covered by a thin metallic shell (usually gold). These nanoshells involve a quasiparticle called plasmon which is a collective excitation or quantum plasma oscillation where the electrons simultaneously oscillate with respect to all the ions.
If I take a nanoshell and I attach it or place it directly next to a cell that I want to destroy and shine light on it then it will convert the light to heat and it will very gently destroy the cell.