Researchers at Seoul National University and Inha University in South Korea developed photo-sensitive artificial nerves that emulated functions of a retina by using 2-dimensional carbon nitride (C3N4) nanodot materials.

When a person gets sick, the invading virus or bacteria often triggers an immune response, sending a wave of white blood cells to attack the source of the illness. While the body’s natural defenses can often dismantle the infection, the immune reaction can sometimes cause more harm than intended.