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Listening to the Sound of Skin Cancer

t-wine stains (birthmarks), but this would be its first application to oncology, Viator said. The team is now planning a pilot study on actual blood samples from patients, and larger clinical studies will need to be done, but the test shows great promise for early detection of the spread of this disease, according to Viator.

The team is also working with other Missouri-Columbia scientists in the veterinary college and the department of surgery to extend the reach of its technique to other types of cancer. Because of melanin, melanoma is the only type of cancer whose cells will strongly absorb all wavelengths of light, emitting ultrasounds that stand out from those of other cells. But artificial materials could also be introduced, to act as light absorbers -- and as noise makers. "We're looking for methods to attach other kinds of absorbers to cancer cells," Viator said. For example, he said, gold nanoparticles -- particles only a few millionths of a millimeter wide -- could be attached to the cells using proteins that bind to special receptors on the cells' membranes. With their own photoacoustic signature, the gold particles would then signal the presence of cancer cells.

Source-Newswise
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