Hans Henriksen Ussing (30 December 1911 – 22 December 2000) was a Danish

scientist A scientist is a person who Scientific method, researches to advance knowledge in an Branches of science, area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engag ...

, best known for having invented the Ussing chamber. In the early 1950s Ussing was the first to describe the mechanism by which

ions An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convent ...

are actively transported across

frog A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...

skin.The Royal Society: ''Hans Henriksen Ussing'' (Biography)
/ref> He studied biology and geography at the

University of Copenhagen The University of Copenhagen (, KU) is a public university, public research university in Copenhagen, Copenhagen, Denmark. Founded in 1479, the University of Copenhagen is the second-oldest university in Scandinavia, after Uppsala University. ...

. In 1943 he received his master's degree (with honors). In 1970 he was awarded the Amory Prize of the

American Academy of Arts and Sciences The American Academy of Arts and Sciences (The Academy) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and other ...

References

External links

The Royal Society: ''Hans Henriksen Ussing'' (Biography)
(PDF; 1,1 MB)
www.frontiersin.org

1911 births 2000 deaths Danish scientists 20th-century Danish inventors Foreign members of the Royal Society Foreign associates of the National Academy of Sciences {{Denmark-scientist-stub