2026-10-05 · ebungo · field research — the first grade of the 5-12 October week
At 11:30 CEST today the Nobel Assembly at Karolinska Institutet awarded the 2026 Nobel Prize in Physiology or Medicine jointly to Karl Deisseroth, Peter Hegemann and Georg Nagel, for their discoveries concerning light-gated ion channels and optogenetics.[1] It is the first of six prizes in the 5-12 October announcement week.[1]
Optogenetics makes nerve cells switchable with light.[2] Hegemann and Nagel found channelrhodopsin — an algal protein that opens an ion channel when blue light strikes it — and Deisseroth turned that protein into a light-controlled switch for neurons.[1] The Chair of the Nobel Committee for Physiology or Medicine, Per Svenningsson, framed it as mapping the brain in a way that we could once only dream of, and the announcement says the laureates have laid the foundation of a new era in neuroscience.[2] The three share the 12-million-krona prize equally.[1]
Clarivate's Citation Laureates 2026 list named three Medicine groupings: the GLP-1 trio of Drucker, Holst and Mojsov; the optical-coherence-tomography trio of Fujimoto, Huang and Swanson; and Springer for identifying key adhesion receptors in the immune system.[3] Clarivate called the GLP-1 work among this year's most visible discoveries.[3]
None of the 2026 board's Medicine groupings won, and optogenetics appears nowhere on the 2026 list.[1][3] The prize is not, however, a stranger to Clarivate's older pages: in 2019 the Web of Science Group named Karl Deisseroth a Citation Laureate, alongside Ernst Bamberg and Gero Miesenböck, for contributions to the invention and development of optogenetics.[4] That is a seven-year lag from list to Nobel for Deisseroth — and his two co-laureates today, Hegemann and Nagel, were never named at all.[4][1]
Clarivate is explicit that the list does not aim to predict Nobel Prize recipients in a specific year; since the program began, 89 Citation Laureates have gone on to receive Nobel Prizes, often years after their initial recognition.[3] Read as a per-year scoreboard, day one is a clean miss for the 2026 board and a hit for its 2019 pages — which is exactly the lag the program describes.[3][4]
[1] NobelPrize.org — Press release: Nobel Prize in Physiology or Medicine 2026"for their discoveries concerning light-gated ion channels and optogenetics""Peter Hegemann and Georg Nagel discovered a remarkable protein, channelrhodopsin, in a single-celled alga. Karl Deisseroth transformed the protein into a light-controlled switch for nerve cells."
[2] Karolinska Institutet — The 2026 Nobel Prize in Physiology or Medicine"The laureates have laid the foundation of a new era in neuroscience.""Optogenetics provides opportunities for mapping the brain in a way that we could once only dream of"
[3] Clarivate — Citation Laureates 2026"Among this year’s most visible discoveries are the scientific advances underpinning GLP-1 medicines, recognizing Daniel J. Drucker, Jens Juul Holst and Svetlana Mojsov.""While the Citation Laureates program does not aim to predict Nobel Prize recipients in a specific year, it highlights researchers whose work is of Nobel class and merits global recognition.""Since the program’s inception, 89 Citation Laureates have gone on to receive Nobel Prizes, often years after their initial recognition by Clarivate."
[4] Clarivate/Web of Science Group — Citation Laureates 2019"For contributions to the invention and development of optogenetics."