Certain types of light have proven to be an effective, minimally invasive treatment for cancers located on or near the skin when combined with a light-activated drug. But deep-seated cancers, surrounded by tissue, blood and bone, have been beyond the reach of light's therapeutic effects.
To bring light's benefits to these harder-to-access cancers, engineers and scientists at the University of Notre Dame have devised a wireless LED device that can be implanted.