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Frederick William Twort and the Bacteriophages

Frederick William Twort and the Bacteriophages

Tabea Tietz
On March 20, 1955, English bacteriologist Frederick William Twort passed away. Twort was the original discoverer in 1915 of bacteriophages, i.e. viruses that infect bacteria. He researched into Johne’s disease, a chronic intestinal infection of cattle, and also discovered that vitamin K is needed by growing leprosy bacteria. Early Years Frederick William Twort was born in Camberley, Surrey, the eldest of the eleven children of Dr. William Henry Twort. He initially only received a limited…
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chemistry
Sir Frederick Gowland Hopkins and the Discovery of Vitamins

Sir Frederick Gowland Hopkins and the Discovery of Vitamins

Tabea Tietz
On June 20, 1861, English biochemist and Nobel Laureate Sir Frederick Gowland Hopkins was born. He is best known for the discovery of essential nutrient factors, now known as vitamins, needed in animal diets to maintain health. He also discovered the amino acid tryptophan, in 1901. “A cell has a history; its structure is inherited, it grows, divides, and, as in the embryo of higher animals, the products of division differentiate on complex…
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medical science
How James Lind, a Pioneer of Clinical Trials, Developed a Cure for Scurvy

How James Lind, a Pioneer of Clinical Trials, Developed a Cure for Scurvy

Harald Sack
On October 4, 1714, Scottish physician James Lind was born. He was a pioneer of naval hygiene in the Royal Navy. By conducting the first ever clinical trial, he developed the theory that citrus fruits cured scurvy. His work advanced the practice of preventive medicine and improved nutrition. James Lind – Early Years James Lind was born in Edinburgh, Scotland, to Margaret (Smelum) and James Lind, a prosperous merchant whose wife had medical…
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biology
Richard Kuhn and his Work on Carotinoids and Vitamins

Richard Kuhn and his Work on Carotinoids and Vitamins

Tabea Tietz
On December 3, 1900, Austrian-German biochemist Richard Johann Kuhn was born. Kuhn was awarded the Nobel Prize in Chemistry in 1938 “for his work on carotenoids and vitamins“. Kuhn is also credited with the discovery of the deadly nerve agent Soman in 1944. Early Years Richard Kuhn was born in Vienna, Austria, where he also attended elementary school and the Döblinger Gymnasium. From 1910 to 1918 he attended the same classes as the…
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chemistry
Elmer McCollum and the Discovery of Vitamins

Elmer McCollum and the Discovery of Vitamins

Tabea Tietz
On November 15, 1967, American biochemist Elmer McCollum passed away. McCollum is known for his work on the influence of diet on health. Together with Marguerite Davis McCollum discovered the first vitamin, named A, in 1913. He also helped to discover vitamin B and vitamin D and worked out the effect of trace elements in the diet. Elmer McCollum – Youth hand Family Background Elmer McCollum was born on March 3, 1879,…
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