Artificial retinas could restore sight to the blind
Researchers are using graphene to develop artificial retinas for the blind.The retina implants, created by a team from the Technische Universitat Munchen (TUM) in Germany, work by converting incident light into electrical impulses that can be sent to the brain through the optical nerve.
In the brain, the signals are then converted into images, allowing blind people whose optical nerves are still intact, to see.
While many researchers have attempted to create retina implants in the past, they have been largely unsuccessful due to the incompatibility of the materials used.
The TUM team chose to use graphene because of its excellent biocompatibility, flexibility and chemical durability.
"Along with its electronic properties, graphene provides an efficient interface for communication between the retina prosthesis and nerve tissue," explained lead researcher Jose Garrido.
The researchers have been admitted to the European Union's €1billion, 10 yar Graphene Flagship Programme to continue their work.
