Blind World Magazine

Nanotechnology Restores Sight In Blind Rodents.

All Headline News, Canada.
Tuesday, March 14, 2006.

By Yvonne Lee, All Headline News Staff Reporter.

Scientists from the Massachusetts Institute of Technology and Hong Kong University severed the optical nerve tract in the rodents to make the animals blind.

At the site of the injury, the hamsters were injected with a fluid containing nanoparticles, or synthetically made peptides.

BBC News reports that the peptides arranged themselves into a criss-cross of nanofibers inside the brain. This created a bridge between the severed nerves.

The brain tissue in the hamsters linked together across the bridge, enabling the brain nerves to re-grow. Sight was then restored to the hamsters.

Dr. Rutledge Ellis-Behnke, a neuroscientist at MIT and lead author on the paper, says: "We made a cut, put the material in, and then we looked at the brain over different time points."

The scientists hope this technique can be used in reconstructive brain surgery.

The study appears in the Proceedings of the National Academy of Sciences.

End of article.

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