Deisseroth, Hegemann and Nagel win 2026 Nobel medicine prize for optogenetics
In short
The 2026 Nobel Prize in Physiology or Medicine was awarded to US scientist Karl Deisseroth and German researchers Peter Hegemann and Georg Nagel for developing optogenetics, a technique that uses light to control individual nerve cells in the brain. The Nobel Assembly at Sweden's Karolinska Institute announced the award on Monday, citing the trio's “discoveries concerning light-gated ion channels and optogenetics”. Researchers are exploring the method in attempts to restore sight and improve cochlear implants.
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The Nobel Assembly at Sweden's Karolinska Institute announced on Monday that US scientist Karl Deisseroth and German researchers Peter Hegemann and Georg Nagel had won the 2026 Nobel Prize in Physiology or Medicine for developing optogenetics, a technique that uses light to control individual nerve cells in the brain. [ 1 , 3 , 4 ]
The assembly said the three were honoured for their “discoveries concerning light-gated ion channels and optogenetics”. Thomas Perlmann, Secretary-General of the Nobel Assembly, said the breakthrough has enabled researchers to switch individual nerve cells on or off inside a living brain, adding that the method “is now being used in laboratories around the world to reveal the brain's mysteries”. [ 3 , 4 ]
Optogenetics has become one of the most important tools in modern neuroscience, Emirates 24|7 reported, allowing researchers to study how specific groups of neurons contribute to behaviour, memory, movement and disease. Gulf News quoted the Nobel Assembly saying the technique has let researchers reveal neural circuits governing specific memories, feelings and behaviours relevant to neurological and psychiatric disorders, and that it may one day lead to treatments for conditions such as Parkinson's disease and epilepsy. Emirates 24|7 said scientists are working on restoring vision in people with retinitis pigmentosa, an inherited eye disease that causes blindness, by inserting light-sensitive proteins into the retina, and believe the technique could improve cochlear implants through more precise stimulation of the auditory nerve. [ 1 , 3 ]
Emirates 24|7 described how the work developed: in the early 1990s Hegemann investigated how the alga Chlamydomonas responds to light within milliseconds and proposed that a single protein both detected light and functioned as an ion channel. Nagel later tested the theory by introducing Chlamydomonas genes into frog eggs, leading to the discovery of channelrhodopsin-2, an ion channel that opens when exposed to light. In 2003 Hegemann and Nagel demonstrated the protein could be inserted into human and hamster cells to trigger electrical signals using light; two years later Deisseroth, working at Stanford University, applied the technique. [ 3 ]
Gulf News reported that this year's laureates will receive their prize — a diploma, a gold medal and a $1.2-million cheque — from King Carl XVI Gustaf at a formal ceremony in Stockholm on December 10, the anniversary of the death in 1896 of the prize's creator, Alfred Nobel. The same outlet noted that the physics prize will be announced on Tuesday and the chemistry prize on Wednesday. [ 1 ]
Why it matters
Optogenetics has become a widely used tool in neuroscience, letting researchers switch individual nerve cells on or off in a living brain, according to the Nobel Assembly and the outlets covering the award. The documents also describe early clinical work aimed at restoring sight in people with inherited eye disease and improving cochlear implants, and Gulf News reports the technique may one day lead to treatments for neurological and sensory disorders. Beyond the science, the prize draws global attention to brain research during Nobel award week.
Key facts
- The 2026 Nobel Prize in Physiology or Medicine was awarded to US scientist Karl Deisseroth and German researchers Peter Hegemann and Georg Nagel. [ 1 , 3 , 4 ]
- The Nobel Assembly at Sweden's Karolinska Institute announced the award on Monday. [ 1 , 3 , 4 ]
- The assembly cited the trio's “discoveries concerning light-gated ion channels and optogenetics”. [ 3 , 4 ]
- Optogenetics uses light to control individual nerve cells in the brain. [ 1 , 3 , 4 ]
- Researchers are exploring the technique in attempts to restore sight in people with visual impairment, and to improve cochlear implants. [ 1 , 3 ]
- Gulf News reported the laureates will receive a diploma, a gold medal and a $1.2-million cheque at a ceremony in Stockholm on December 10. [ 1 ]
Confirmed by several sources
- Karl Deisseroth, Peter Hegemann and Georg Nagel won the 2026 Nobel Prize in Physiology or Medicine. [ 1 , 3 , 4 ]
- The award was announced by the Nobel Assembly at Sweden's Karolinska Institute. [ 1 , 3 , 4 ]
- The prize was given for work on optogenetics, a technique that controls nerve cells with light. [ 1 , 3 , 4 ]
- The assembly's citation referred to “discoveries concerning light-gated ion channels and optogenetics”. [ 3 , 4 ]
Still unclear
- The prize sum, described as a $1.2-million cheque, Only Gulf News states the amount; the other two documents do not mention the prize money.
- How close optogenetics is to clinical treatments. Gulf News says the field “may one day lead to treatments” for disorders such as Parkinson's disease and epilepsy, while Emirates 24|7 says the technology “is already being explored in clinical research”. The documents do not give a timeline or trial results.
- The details of Deisseroth's 2005 work at Stanford University. The Emirates 24|7 article text ends mid-sentence, so the account of that step is incomplete in the documents.
What local media are saying
Timeline, local time
- Gulf News publishes its report on the medicine prize, naming the laureates and describing the field. [ 1 ]
- Emirates 24|7 publishes a longer account with the citation, a quote from the Nobel Assembly's secretary-general and the history of the discovery. [ 3 ]
- WAM reports the Nobel Assembly's announcement of the three laureates. [ 4 ]
- The laureates are due to receive the prize from King Carl XVI Gustaf at a ceremony in Stockholm on December 10, the anniversary of Alfred Nobel's death in 1896, according to Gulf News. [ 1 ]