Sun . 20 Mar 2020

Hans Christian Gram

Hans Christian Joachim Gram (13 September, 1853 - 14 November, 1938) Dan bacteriologist. He was the son of Professor of Law, Frederik Terkel Julius Gram and Louise Christiane Roulund.
studied botanical at the University of Copenhagen and then started working as an assistant to zoologist Japetus Steenstrup. His studies of the plant led him to learn the basics of pharmacology and the use of the microscope.
He started medical school in 1878 and graduated in 1883. He also traveled to Europe. In 1884, Berlin developed a method for distinguishing two large classes of bacteria. The method took the name Gram staining and became the standard procedure in biochemistry and microbiology.
He began teaching Gram pharmacology in 1891 and was appointed as a professor of pharmacology at the University of Copenhagen at the end of the year. He resigned from the professor of pharmacology in 1900 and switched to medicine.
Gram staining
Gram staining method, which made the Gram internationally famous, colored the bacteria to be seen more clearly under a microscope. Gram staining was one of the most used methods to classify bacteria after being invented. Gram was so humble that the article in which he described the method made a note: "Although I shared the article, the method is not perfect and it has flaws, but maybe I shared the article because I hope you can develop and use the method." The raw material of gram dye is crystal violet dye and the microscopic dye of saffron.
Other studies
He made researches on red blood cells in men. After becoming a professor of medicine in 1900, he published 4 medical articles and these articles were used extensively in Denmark.
Gram retired in 1923.
Bibliography
Whitworth, Judith A .; Firkin, Barry G. (2002). Dictionary of medical eponyms. Carnforth, Lancs: Parthenon. ISBN 1-85070-333-7. Hans Christian Joachim Gram; ("Who Got Its Name" website) Who Named It?


Hans Christian Gram

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