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Sir Alexander Fleming FRS FRSE FRCS [2] (6 August 1881 – 11 March 1955) was a Scottish physician and microbiologist, best known for discovering the world's first broadly effective antibiotic substance, which he named penicillin.
Sample of penicillin mould presented by Alexander Fleming to Douglas Macleod in 1935. The discovery of penicillin was one of the most important scientific discoveries in the history of medicine. Ancient societies used moulds to treat infections and in the following centuries many people observed the inhibition of bacterial growth by moulds.
Major contributions to the science of microbiology (as a discipline in its modern sense) have spanned the time from the mid-17th century month by month to the present day. The following is a list of notable microbiologists who have made significant contributions to the study of microorganisms .
Electrocardiography: Alexander Muirhead (1869) [143] [144] Discovery of Staphylococcus: Sir Alexander Ogston (1880) [145] Discovering insulin: John Macleod (1876–1935) with others [10] The discovery led him to be awarded the 1923 Nobel prize in Medicine. [146] Penicillin: Sir Alexander Fleming (1881–1955) [9]
BBC Children in Need/Comic Relief/Getty Images. The brand-new project will hold a special meaning to Prince William due to the location. The Fleming Centre will be located at St Mary’s Hospital ...
1929: Alexander Fleming: Penicillin, the first beta-lactam antibiotic; 1929: Lars Onsager's reciprocal relations, a potential fourth law of thermodynamics; 1930: Subrahmanyan Chandrasekhar discovers his eponymous limit of the maximum mass of a white dwarf star; 1931: Kurt Gödel: incompleteness theorems prove formal axiomatic systems are incomplete
Fleming photographed the culture and took a sample of the mould for identification before preserving the culture with formaldehyde. [24] Fleming resumed his vacation and returned in September. He collected the original mould and grew it in culture plates. After four days he found that the plates developed large colonies of the mould.
Ten of Obama's greatest accomplishments. When Barack Obama ran for president in 2008, his campaign slogan was "Change we can believe in." He ran on the platform that called for the country to come ...