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Gold Nanospheres Sear Cancer Cells to Death

Gold nanospheres that bake tumors to death by attracting heat of low-powered lasers have been developed by scientists in California.

"You could send a person home, have them shine a laser on the specific part of the body with cancer for a couple weeks, and they could be cured of cancer," said Jin Zhang, a professor at the University of California in Santa Cruz who helped develop the nanoparticles.

To create the gold nanospheres, the scientists started with nanospheres made from cobalt, then replaced the cobalt atoms with gold atoms, using the same process that turns the calcium in dinosaur bones into fossils.

The gold nanospheres are then coated in antibodies that detect, and then latch onto, cancer cells.