Nobel Prize in Chemistry 2003

Peter Agre

Photo from the Nobel Foundation archive.

Prize share: 1/2

Roderick MacKinnon

Photo from the Nobel Foundation archive.

Prize share: 1/2

The Nobel Prize in Chemistry 2003 was awarded "for discoveries concerning channels in cell membranes" jointly with one half to Peter Agre "for the discovery of water channels" and with one half to Roderick MacKinnon "for structural and mechanistic studies of ion channels"

To cite this section
MLA style: The Nobel Prize in Chemistry 2003. NobelPrize.org. Nobel Prize Outreach 2025. Mon. 23 Jun 2025. <https://www.nobelprize.org/prizes/chemistry/2003/summary/>

Back to top Back To Top Takes users back to the top of the page

Nobel Prizes and laureates

Nobel Prizes 2024

Six prizes were awarded for achievements that have conferred the greatest benefit to humankind. The 12 laureates' work and discoveries range from proteins' structures and machine learning to fighting for a world free of nuclear weapons.

See them all presented here.

Illustration

Explore prizes and laureates

Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize.