descil writes "In addition to the Reovirus story posted earlier, Health Central reports that nanoscopic gold-coated beads can be used to kill cancerous cells, while leaving other tissues undamaged. The researchers tested their technique on human breast cancer cells and on cancerous tumors grown on mice. In each case, the combination of nanoshells and near-infrared light caused irreversible heat damage to tumor cells while leaving surrounding tissue unharmed."
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