please tell how did sir alexander flemming discover antibiotics
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In 1928 Alexander Fleming (1881–1955) discovered penicillin, made from the Penicillium notatum mold, but hedid not receive the Nobel Prize in Physiology or Medicine for hisdiscovery until 1945.
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Sir Alexander Fleming
Sir Alexander Fleming, a Scottish biologist, defined new horizons for modern antibiotics with his discoveries of enzyme lysozyme (1921) and the antibiotic substance penicillin (1928). The discovery of penicillin from the fungus Penicillium notatum perfected the treatment of bacterial infections such as, syphilis, gangrene and tuberculosis. He also contributed immensely towards medical sciences with his writings on the subjects of bacteriology, immunology and chemotherapy.
Alexander Fleming was born in Loudon, Scotland on 6 August, 1881 in a farming family. He carried on his schooling at Regent Street Polytechnic after his family moved to London in 1895. He joined St. Mary's Medical School and became research assistant to renowned Sir Almroth Wright after he qualified with distinction in 1906. He completed his degree (M.B.B.S.) with gold medal in 1908 from the University of London and lectured at St. Mart till 1914. He served as Captain during the World War I and worked in battlefield hospitals in France. After the war he returned to St. Mary in 1918 and got elected Professor of Bacteriology in 1928
The Discovery of Antibiotics
"One sometimes finds what one is not looking for"
(Sir Alexander Fleming)
His research and study during his military career inspired him to discover naturally antiseptic enzyme in 1921, which he named lysozyme. This substance existed in tissues and secretions like mucus, tears and egg-white but it did not have much effect on the strongly harmful bacteria. Six years later; as a result of some intelligent serendipity, he stumbled on discovering penicillin. It was in 1928 when he observed while experimenting on influenza virus that a common fungus, Penicillium notatum had destroyed bacteria in a staphylococcus culture plate. Upon subsequent investigation, he found out that mould juice had developed a bacteria-free zone which inhibited the growth of staphylococci. This newly discovered active substance was effective even when diluted up to 800 times. He named it penicillin.
He was knighted in 1944 and was given the Nobel Prize in Physiology or Medicine in 1945 for his extraordinary achievements which revolutionized the medical sciences.
hope it will help you.
thank you!
Sir Alexander Fleming, a Scottish biologist, defined new horizons for modern antibiotics with his discoveries of enzyme lysozyme (1921) and the antibiotic substance penicillin (1928). The discovery of penicillin from the fungus Penicillium notatum perfected the treatment of bacterial infections such as, syphilis, gangrene and tuberculosis. He also contributed immensely towards medical sciences with his writings on the subjects of bacteriology, immunology and chemotherapy.
Alexander Fleming was born in Loudon, Scotland on 6 August, 1881 in a farming family. He carried on his schooling at Regent Street Polytechnic after his family moved to London in 1895. He joined St. Mary's Medical School and became research assistant to renowned Sir Almroth Wright after he qualified with distinction in 1906. He completed his degree (M.B.B.S.) with gold medal in 1908 from the University of London and lectured at St. Mart till 1914. He served as Captain during the World War I and worked in battlefield hospitals in France. After the war he returned to St. Mary in 1918 and got elected Professor of Bacteriology in 1928
The Discovery of Antibiotics
"One sometimes finds what one is not looking for"
(Sir Alexander Fleming)
His research and study during his military career inspired him to discover naturally antiseptic enzyme in 1921, which he named lysozyme. This substance existed in tissues and secretions like mucus, tears and egg-white but it did not have much effect on the strongly harmful bacteria. Six years later; as a result of some intelligent serendipity, he stumbled on discovering penicillin. It was in 1928 when he observed while experimenting on influenza virus that a common fungus, Penicillium notatum had destroyed bacteria in a staphylococcus culture plate. Upon subsequent investigation, he found out that mould juice had developed a bacteria-free zone which inhibited the growth of staphylococci. This newly discovered active substance was effective even when diluted up to 800 times. He named it penicillin.
He was knighted in 1944 and was given the Nobel Prize in Physiology or Medicine in 1945 for his extraordinary achievements which revolutionized the medical sciences.
hope it will help you.
thank you!
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