Gold Nanoparticles Restore The Vision Of Blind Mice

Three blind mice could be a thing of the past. Scientists have restored the sight of blind mice by implanting tiny gold prosthetic photoreceptors into their eyes.

So far, this incredible technique has only been carried out on mice. However, the work holds some hope for people with degenerative eye diseases such as retinitis pigmentosa or macular degeneration.

The revolutionary study comes from a team of scientists from Fudan University in Shanghai, China. They have managed to develop gold nanoparticle coated titanium dioxide nanowires that work just like the eye’s natural photoreceptors, as described in the latest issue of the journal Nature Communications.

The gold-coated nanowires, no longer than 100 nanometers in length, sit in the place of rod and cone photoreceptor cells at the back of blind mice retinas. When light hits these artificial nanoparticles, it generates a small voltage, sparking a response from neurons in the visual system, just like normal.

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