nanotech

11.08.09

Nanoparticles Can Damage DNA Without Crossing Cellular Barrier

Metal nanoparticles use a newly observed cell signal process to wreak havoc indirectly
By Jeremy Hsu Posted 11.06.2009 at 12:28 pm 0 Comments

Scientists know that nanoparticles can damage DNA in cells through direct interaction. Now, though, it appears that nanoparticles can also mess with DNA on the far side of a cellular barrier, by creating signaling molecules -- a never-before-seen phenomenon.

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November 2009: Astronaut 3.0

Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.

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