Nanoshells(NS): üThese are another recent invention.NS are miniscule beads coated with gold. üThe most useful nanoshells are those that absorb near infrared light that can easily penetrate Several centimeters in human tissuses. üAbsorption of light by nanoshells creates an intense heat that is lethal to cells. üIn laboratory cultures the heal generated by the light-absorbing nanoshells has successfully Killed tumor cells while leaving neighboring cells intact. &nb ...