💡 Nanoparticles Helped Blind Mice Respond to Light Again

Researchers at Aarhus University in Denmark have developed a method that can make a blind eye respond to light again. Nanoparticles are injected into the eye, where they respond to light and activate surviving retinal neurons, bypassing dead photoreceptors. The researchers see the technology as a potential "injectable retinal prosthesis."

In some eye diseases, photoreceptors-the cells that convert light into neural signals-gradually disappear. But the neurons that normally carry those signals to the brain can remain intact.

The researchers found a way to reconnect them with light. They created hollow carbon nitride nanoparticles about 300 nm in diameter, with a structure inspired by chloroplasts-the parts of plant cells that capture light. After injection, the particles settle on the retina near surviving neurons and help activate them when exposed to blue light.

🔍 The team tested the approach in blind mice. One month after the i…

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