2026 Nobel Prize in Physiology or Medicine Awarded to Peter Hegemann, Karl Deisseroth and Georg Nagel

The 2026 Nobel Prize in Physiology or Medicine was awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel for their groundbreaking discoveries in the field of light-controlled ion channels and optogenetics. Within the scope of the award announced at the opening of Nobel Week, scientists also received a prize money of 12 million Swedish crowns. So, who is Peter Hegemann? Career of Peter Hegemann, winner of the 2026 Nobel Prize in Medicine

WHO IS PETER HEGEMANN?

Peter Hegemann, born in 1954, is a German biophysicist and scientist who has important works in the field of neuroscience. He is particularly known for his work in the field of light-sensitive ion channels and optogenetics.

2026 NOBEL MEDICINE PRIZE WINNER

Hegemann was awarded the 2026 Nobel Prize in Physiology or Medicine together with Karl Deisseroth and Georg Nagel. Three scientists received awards for their discoveries in the field of "light-controlled ion channels and optogenetics".

Hegemann and Georg Nagel discovered the light-sensitive protein called channelrhodopsin during their studies on Chlamydomonas, a single-celled alga. This discovery paved the way for controlling cells using light.

This fundamental discovery later evolved into the optogenetics method, which enables nerve cells to be turned on and off with light, through the work of Karl Deisseroth. The method has become an important tool in studying how the brain manages memory, emotion and behavior.

CAREER OF PETER HEGEMANN

After studying chemistry, Hegemann completed his doctorate in Munich. He later worked as a postdoctoral researcher at Syracuse University and founded a research group at the Max Planck Institute for Biochemistry. After working as a professor at the University of Regensburg, he became a professor of biophysics at the Humboldt University of Berlin in 2004.

Today, his research focuses especially on light receptors, channel rhodopsins, optogenetics and neural networks in microalgae.