The 2026 Nobel Prize in Physiology or Medicine has been awarded to Karl Deisseroth, Peter Hegemann, and Georg Nagel for their groundbreaking research on light-gated ion channels and the development of optogenetics.
The Nobel Committee at the Karolinska Institute revealed the laureates on Monday, October 5, 2026.
The scientists were honoured for pioneering work that gave rise to optogenetics, a revolutionary technique that lets researchers manipulate individual nerve cells in the living brain through light stimulation.
Hegemann and Nagel are credited with identifying channelrhodopsin, a protein in single-celled algae that reacts to light, while Deisseroth refined this discovery into a tool that acts as a light-activated switch for neurons.
This innovation has opened new avenues in understanding how neural networks shape memories, emotions, and actions, and it has become a mainstay in neuroscience research.
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