Archival Overview
Pioneering Danish zoophysiologist awarded the Nobel Prize in Physiology or Medicine in 1920 for discovering the motor regulating mechanism of the capillaries.
Biographical Record
Schack August Steenberg Krogh was born on November 15, 1874, in Grenaa, Jutland. Studying zoology and physiology at the University of Copenhagen under Christian Bohr, he invented precision instruments to measure gas exchange in living organisms.
Krogh proved that capillary blood vessels do not remain open constantly, but dilate and contract in response to tissue metabolic demand, earning the 1920 Nobel Prize. Following a 1922 lecture tour in North America with his diabetic wife Marie Krogh, he secured authorization from Banting and Macleod to manufacture insulin in Scandinavia, co-founding the Nordisk Insulinlaboratorium (now Novo Nordisk) and formulating the famous 'Krogh Principle' in comparative biology.
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Final Resting Place
Perpetual MemorialCopenhagen, Denmark