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Sunday, 12 December 2010

Blood On The Brain

The web site Nanowerk that covers the science of Nanotechnology and its applications featured an article dated 8 December 2010 titled “Can Nanoparticles End Up In The Brain?” dealing with the issues arising from the Blood Brain Barrier and the effects of new drugs.

It is a long and complicated article and the link is given below. Also I have copied the Conclusions. It is about drugs and the treatment of diseases with more targeted and complex substances.

But this technology is not being applied only to closely monitored and regulated drugs. It is being used in a range of unregulated, untested and powerful commercial products that are designed to impact on the brain. Moreover there is limited or no research in many jurisdictions.

If the professionals in this field using it in highly controlled and examined testing and functions have so little knowledge about the risks just how much do the global consumer product companies know?

What notice of this is being taken by the relevant authorities or research in the UK? The answer to that is a simple one. None whatsoever.


Artificially manufactured particles can be applied to help overcome natural physiological barriers such as the blood-brain barrier. This phenomenon can be used to intentionally transport drugs to parts of the organism where they are needed, for example the brain.

Research is currently being conducted to determine whether nanoparticles are able to reach the brain by other mechanisms such as along the olfactory nerve. It also remains poorly known whether nanoparticles unintentionally pass the blood-brain barrier and cause potential damage.

The few available studies on the risks of nanoparticles that have entered the central nervous system are controversial. This prevents drawing definitive conclusions about the health effects of unintentional exposure of the brain to nanoparticles

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