Johannes Friedrich Miescher (August 13, 1844 - August 26, 1895) was a Swiss physician and biologist. Miescher isolated various phosphate-rich chemicals, which he called nuclein (now nucleic acids), from the nuclei of white blood cells in 1869, paving the way for the identification of DNA as the carrier of inheritance. The significance of the discovery, first published in 1871, was not at first apparent, and it was Albrecht Kossel who made the initial inquiries into its chemical structure.

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Johannes Friedrich Miescher, Swiss Biochemist

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