Nanoparticles and cancer

The New Scientist has an article about a new technique to use nanoparticles to image tumors and then kill them. The nanoparticles can reflect some IR radiation but absorb the rest as heat. The same particles can be used to visualize and heat-kill the tumors. The particles are localized to tumor due to the leaky vasculature in the tumor. This looks like a great use of nanoparticles.