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Published online 9 January 2004 | Nature | doi:10.1038/news040105-9
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Nanoparticles in the brain
Tiny particles enter the brain after being inhaled.
Nanoparticles - tiny lumps of matter that could one day to be used to build faster computer circuits and improve drug delivery systems - can travel to the brain after being inhaled, according to researchers from the United States1.
The finding sounds a cautionary note for advocates of nanotechnology, but may also lead to a fuller understanding of the health effects of the nanosized particles produced by diesel engines.
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