2026 Nobel Prize in Physiology or Medicine awarded for optogenetics
In short
The 2026 Nobel Prize in Physiology or Medicine was awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel for discoveries concerning light-gated ion channels and optogenetics, the Nobel Foundation announced on October 5. The technique lets researchers use light to switch specific nerve cells on and off in living animals, helping show how those cells affect memory, emotion and behaviour. Huxiu reported the prize is 12 million Swedish kronor, about 8.01 million yuan, one million kronor more than in previous years.
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The Nobel Foundation announced on October 5, 2026 that the 2026 Nobel Prize in Physiology or Medicine was awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel for discoveries concerning light-gated ion channels and optogenetics. Huxiu reported that Sweden's Karolinska Institute released the result, that the 2026 prize is 12 million Swedish kronor, about 8.01 million yuan and one million kronor more than in previous years, and that 2026 is the 125th anniversary of the Nobel Prize, citing nobelprize.org. [ 1 , 2 , 3 , 4 ]
Optogenetics lets researchers switch specific nerve cells on or off with light in a living animal. IT Home and cnBeta wrote that the method allows specific neurons to be controlled in live brains so that their influence on memory, emotion, behaviour and bodily functions can be observed directly, moving neuroscience from seeing that a brain region is active to testing whether particular cells cause a behaviour. QbitAI reported the control works on a millisecond timescale. [ 1 , 3 , 4 ]
The work began with a single-celled green alga. Hegemann studied how Chlamydomonas swims toward light, and in the early 2000s he and Nagel identified channelrhodopsin, a membrane protein whose ion channel opens under blue light, letting charged ions enter the cell and produce an electrical signal. QbitAI dated the identification of the first channelrhodopsin to 2002 and the characterisation of ChR2 to 2003. Deisseroth inserted the channelrhodopsin gene into rat nerve cells and showed in 2005 that blue light alone could trigger neural signals; two years later the approach was shown to work in the brains of living mice. [ 1 , 3 , 4 ]
Per Svenningsson, chair of the Nobel committee for physiology or medicine, said the technique offers brain research means that were previously hard to imagine, according to IT Home. The committee said optogenetics has fundamentally changed how scientists understand how the brain works. Beyond basic research, researchers are attempting to use it to help people with impaired vision regain partial sight. [ 1 , 3 ]
cnBeta reported that Deisseroth, born in 1971, works at the Howard Hughes Medical Institute and Stanford University; Hegemann, born in 1954, is Hertie senior professor of neuroscience at Humboldt University Berlin; and Nagel, born in 1953, is professor of molecular plant physiology at the University of Würzburg. [ 3 , 6 ]
A Huxiu item from the WeChat account 知识分子 said scientists beyond the three laureates contributed importantly to optogenetics and that a Chinese scholar missed out on the award, noting that Deisseroth's postdoc Edward Boyden and student Zhang Feng co-authored the 2005 paper and that Deisseroth named the method optogenetics in 2006. The other documents name only the three laureates. [ 4 , 6 ]
Why it matters
Optogenetics has become a standard laboratory tool for studying how specific neurons drive memory, emotion and behaviour, and the documents say it has changed how scientists understand the brain. Researchers are also testing the approach in clinical work aimed at restoring partial vision in people with impaired sight. The prize is a globally recognised award, and the coverage in Chinese-language tech and business outlets reflects wide interest in the field and in who receives credit for it.
Key facts
- The 2026 Nobel Prize in Physiology or Medicine was awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel for discoveries concerning light-gated ion channels and optogenetics. [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]
- Hegemann and Nagel identified channelrhodopsin in single-celled green algae, a protein whose ion channel opens under blue light and produces an electrical signal. [ 1 , 3 , 4 , 6 ]
- Deisseroth introduced the channelrhodopsin gene into rat nerve cells and showed in 2005 that blue light alone could trigger neural signals, with the approach later shown to work in living mice. [ 1 , 3 , 4 , 6 ]
- The Nobel committee said the work gives researchers ways to map neural connections and activity in the brain that were previously hard to imagine. [ 1 , 3 ]
- Researchers are attempting to use the approach to help people with impaired vision recover partial sight. [ 1 , 3 ]
- Huxiu reported the 2026 prize is worth 12 million Swedish kronor, about 8.01 million yuan, one million kronor more than in previous years, and that 2026 is the 125th anniversary of the Nobel Prize. [ 2 ]
- Deisseroth works at the Howard Hughes Medical Institute and Stanford University; Hegemann is Hertie senior professor of neuroscience at Humboldt University Berlin; Nagel is professor of molecular plant physiology at the University of Würzburg. [ 3 , 4 , 6 ]
Confirmed by several sources
- The 2026 Nobel Prize in Physiology or Medicine was awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel. [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]
- The stated reason is their discoveries concerning light-gated ion channels and optogenetics. [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]
- Hegemann and Nagel discovered channelrhodopsin in algae, and Deisseroth brought it into neurons to control neural signalling. [ 1 , 3 , 4 , 6 ]
- The Nobel committee said optogenetics has fundamentally changed how scientists study the brain. [ 1 , 3 ]
Still unclear
- The 2026 prize sum of 12 million Swedish kronor, and the increase of one million kronor over previous years Only one document reports the amount and the increase; it cites nobelprize.org but no other document in this set confirms the figure.
- Whether scientists beyond the three laureates deserved recognition One Huxiu item says other scientists contributed importantly to optogenetics and that a Chinese scholar missed out, and it names Edward Boyden and Zhang Feng as co-authors of the 2005 paper; the other documents discuss only the three laureates and none explains the committee's selection.
- Where the announcement was made One document says Sweden's Karolinska Institute released the result and another says the Nobel Foundation announced it, but no document names a city.
What local media are saying
Timeline, local time
- IT Home reports that the Nobel Foundation announced the 2026 physiology or medicine prize to three scientists for work on light-controlled ion channels and optogenetics. [ 1 ]
- Huxiu reports the Karolinska Institute announcement, the 12 million Swedish kronor prize sum and the prize's 125th anniversary year. [ 2 ]
- cnBeta publishes an explainer and the laureates' institutional affiliations and birth years. [ 3 ]
- QbitAI publishes a technical account dating the identification of the first channelrhodopsin to 2002 and the characterisation of ChR2 to 2003. [ 4 ]
- Huxiu republishes a WeChat account's account of the discovery, including Hegemann's measurements of algal light responses. [ 5 ]
- Huxiu republishes the 知识分子 article, which notes other contributors and a Chinese scholar missing out on the award. [ 6 ]
- Huxiu republishes a medical account explaining what optogenetics is and its disease research. [ 7 ]