Svedberg, Theodor

Svedberg, Theodor or The (tā`ōdôr svād`bĕryə, tā), 1884–1971, Swedish chemist. He was professor of physical chemistry from 1912 to 1949 at the Univ. of Uppsala. For his fundamental research on colloid chemistry he received the 1926 Nobel Prize in Chemistry. Svedberg studied especially the giant protein molecules, evolving for this work an ultracentrifuge. He wrote Colloid Chemistry (1924, 2d ed. 1928) and was (with K. O. Pedersen) coauthor of The Ultracentrifuge (1940).