Do carbon nanotubes present a health hazard?

Perhaps not:

Nanotubes Tracked In Blood And Liver: Study Finds No Adverse Effects

In the first experiments of their kind, researchers at Rice University and The University of Texas M. D. Anderson Cancer Center have determined that carbon nanotubes injected directly into the bloodstream of research lab animals cause no immediate adverse health effects and circulate for more than one hour before they are removed by the liver.

The findings are from the first in vivo animal study of chemically unmodified carbon nanotubes, a revolutionary nanomaterial that many researchers hope will prove useful in diagnosing and treating disease.

Of course, there needs to be much more research than that. Like long-term exposure, for example. But this is a promising start.

Tags: carbon nanotubes, nanotechnology