Nanoparticles Enter One's Brain Via Olfactory Bulb
MO-411 writes "An article in Nature News briefly looks at nanoparticles' entry into the brains of lab rats. The fascinating point is that the 35-nanometer particles entered via the olfactory passageways. Scientist confirmed this via plugging one side of the a rats nose. This is significant, as Ken Donaldson, a toxicologist at the University of Edinburgh, UK says. 'I would never have thought of looking for inhaled nanoparticles in the brain.' Think about it -- everything from kitty litter to wallboard dust is likely ending up inside the one's brain, circumventing the blood/brain barrier and all its protections. It also makes for an interesting delivery mechanism for other substances..."
This is one of the undocumented features of the Homo Sapiens (not really Homo). Its like the nice 'to be discovered' things that come with DVDs. Unfortunately, someones now documenting it
"Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky