Scientists win 2026 Nobel Medicine prize for pioneering optogenetics

Scientists Karl Deisseroth, Peter Hegemann and Georg Nagel have received the 2026 Nobel Prize in Physiology or Medicine for pioneering light-activated ion-channel techniques that gave rise to optogenetics. Deisseroth, a 54-year-old American, and the German researchers Hegemann (71) and Nagel (73) were chosen by the Nobel Assembly at Sweden’s Karolinska Institute. The award carries a total of 12 million Swedish crowns, roughly $1.2 million, to be split among the three laureates. Optogenetics enables researchers to turn individual brain-cell activity on or off with pulses of light, a tool now employed in labs worldwide to map neural circuits. The prize follows last year’s medicine award to Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi for uncovering regulatory T-cells, a breakthrough that opened new routes for cancer and autoimmune-disease therapy. The medicine announcement starts the week-long Nobel reveal, with physics slated for Oct 6 and chemistry, literature, peace and economics to follow later in the month. The laureates will receive a cash prize of 10 million crowns (about $900 k) at the ceremony on Dec 10, the anniversary of Alfred Nobel’s death, the date on which all Nobel awards are presented.

Context

Optogenetics combines genetics and light to control nerve cells, a method that has transformed brain research since its first demonstrations in the early 2000s. The Nobel recognition highlights how a basic scientific tool can lead to medical advances over decades.