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Gold Nanospheres Show Promise in 'Boiling' Out Cancer
Date:3/23/2009

ptide-loaded nanospheres developed by Zhang appear to have superior ability to find and enter their target and absorb cancer-destroying light. At thousands of times smaller than the width of a human hair, they are smaller than most other metal nanoparticles used in PAT and would appear to be safer because gold generally causes fewer negative reactions than other metals that come in contact with the human body, Zhang said.

"Previously developed nanostructures such as nanorods were like chopsticks on the nanoscale," Zhang said. "They can go through the cell membrane but only at certain angles. Our spheres allow a smoother, more efficient flow through the membranes."

Despite the initial success, Zhang said more extensive trails -- eventually involving humans -- are still needed to test the safety and efficacy of the technique before it goes mainstream.

More information

The U.S. National Cancer Institute has more about melanoma.



-- Kevin McKeever



SOURCE: American Chemical Society, news release, March 22, 2009


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