Karl Deisseroth, Peter Hegemann and Georg Nagel have been awarded the 2026 Nobel Prize in Physiology or Medicine for their work on optogenetics, the technique that lets scientists switch nerve cells on and off with light. The prize recognises research into light-gated ion channels that began with a humble question: how does a single-celled alga swim toward light?
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Karl Deisseroth
American neuroscientist