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Nobel Prize in medicine awarded to three scientists for their work ‘concerning light-gated ion channels and optogenetics’

The trio won for discoveries that let researchers control nerve cells with light, and the prize includes 12 million Swedish kronor, officials said.

  • The Karolinska Institute in Stockholm awarded the Nobel Prize in medicine on Monday to Karl Deisseroth, Peter Hegemann, and Georg Nagel for their research into light-gated ion channels and optogenetics.
  • Optogenetics research enables scientists to switch on or off individual nerve cells in a living brain, the committee wrote, making it possible to reveal the brain's mysteries in laboratories worldwide.
  • Award winners receive 12 million Swedish kronor, or about $1.2 million, as part of the prize money this year, whether for individuals, small groups, or organizations.
  • Following the medicine prize, the Nobel Memorial Prize in Economic Sciences will be announced on Oct. 12, after the peace prize, with physics, chemistry, and literature awards announced this week.
  • Last year, the Nobel Prize in medicine went to three scientists for discoveries about how the immune system identifies germs, findings Experts called critical to understanding autoimmune diseases.
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We explain to you what optogenetics is, the discipline by which Karl Deisseroth, Peter Hegemann and Georg Nagel won the Nobel Prize in Medicine

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Karl Deisseroth, 54, Peter Hegemann, 71, and Georg Nagel, 73, have conducted research on light-activated ionic channels and optogenetics

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Nature broke the news in London, United Kingdom on Monday, October 5, 2026.
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