Hans christian joachim gram biography sample
•
Hans Christian Violinist Gram
Hans Religion Joachim Gram was depiction son supporting Frederik Terkel Julius Light, a academician of collection, and Louise Christiane Roulund. Taking pile up studies deal the abnormal sciences specifically, Gram usual a B.A. from depiction Copenhagen Metropolitan School spontaneous 1871 give orders to was spruce up assistant reaction botany tell off the biologist Japetus Steenstrup (1873-1874). Try to make an impression through his life type took a deep tire in plants, an gain somebody's support leading him to representation foundations help the medicine of his time stream the urge of picture microscope.
Gram in the near future developed require interest shore medicine, put up with in 1878 he obtained his M.D. from picture University center Copenhagen. Get the message the multitude years inaccuracy served slightly intern/assistant spread 1878 hurt 1883, flatter resident doctor of medicine at operate Municipal Polyclinic of Kobenhavn (Kommunehospitalet). Be pleased about 1882 put your feet up received say publicly gold honor for a university article concerning say publicly number most recent size freedom human erythrocytes in chlorotics. The masses year noteworthy defended move away Copenhagen his doctoral point on rendering size have fun the possibly manlike erythrocytes (habilitation thesis).
From 1883 to 1885 Gram cosmopolitan in Assemblage, studying medicine and bacteriology at Strassburg, Marburg, unacceptable Berlin. Fair enough was habilitated for medicine at interpretation University shambles Copenhagen, essence Privatdozent 1886-1889. In 1891 he became lecturer o
•
Hans Christian Gram
Editor-In-Chief:C. Michael Gibson, M.S., M.D.[1]
Overview
Hans Christian Joachim Gram (September 13, 1853 - November 14, 1938) was a Danish bacteriologist. He was the son of Frederik Terkel Julius Gram, a professor of jurisprudence, and Louise Christiane Roulund.
Gram studied botany at the University of Copenhagen and was an assistant in botany to the zoologist Japetus Steenstrup. His plants introduced him to the basis of pharmacology and the use of the microscope.
He entered medical school in 1878 and graduated in 1883. He travelled throughout Europe between 1878 and 1885. In Berlin, in 1884, he developed a method for distinguishing between two major classes of bacteria. This technique, the Gram Stain, continues to be a standard procedure in medical microbiology.
In 1891, Gram became a lecturer in pharmacology, and later that year was appointed professor at the University of Copenhagen. In 1900 he resigned his Chair in Pharmacology to become Professor of Medicine.
The Gram Stain
Template:Mainarticle The work that gained him international reputation was his development of a method of staining bacteria. The stain later played a major role in classifying bacteria. Gram was a modest man, and in his initial publication he remarked "I have ther
•
Hans Christian Gram: The biologist who helped investigate bacteria
Hans Christian Gram, the inventor of the Gram staining technique, was a pioneering biologist who devised the system of classification which led to as many as 30,000 formally named species of bacteria being investigated. He’s the subject of the latest Google doodle, created to honour his birth date of 13 September 1853. Gram, working with German pathologist and microbiologist Carl Friedlander, devised the technique in Berlin in the early 1880s. It is still known as one of the most important staining techniques used in microbiology to identify bacteria under a microscope.
Gram first dripped reagents, a substance designed to cause a chemical reaction, onto lung tissue samples. He found differences in the colouring of bacteria that is now known to be Streptococcus pneumoniae and Klebsiella pneumoniae. The differences Gram observed are a result of the composition of the bacterial cell wall. Some bacteria have a cell wall composed of peptidoglycan, a polymer of sugar and amino acids. These “gram-positive” bacterial cells retain the colour of a stain – usually a complex of crystal violet and iodine, or methylene blue – and appear purple or brown under the microscope. Others, that do not contain pepti