Google Doodle Celebrates The 116th Birth Anniversary Of Hans Christian Gram

Google Doodle Celebrates The 116th Birth Anniversary Of Hans Christian Gram

Google Doodle Celebrates The 116th Birth Anniversary Of Hans Christian Gram 

New Delhi : Google Doodle honored Danish microbiologist Hans Christian Gram on his 166th birth anniversary today. Born in Copenhagen on September 13, 1853, Hans Christian discovered a staining technique that is used to identify and classify different types of bacteria. The technique is used till date even after a century.

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He discovered his technique while treating a smear of bacteria with a crystal violet stain, followed by an iodine solution and organic solvent, he found differences in the structure and biochemical function of samples.

Gram’s findings were published in a journal in 1884, from where the terms Gram-positive and Gram-negative were coined.

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He developed a method to distinguish between two major classes of bacteria. This technique, the Gram stain, continues to be a standard procedure in medical microbiology. Gram's initial work concerned the study of red blood cells in men. He was among the first to recognise that macrocytes were characteristic of pernicious anemia.

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The doodle that honors Gram on his birth anniversary today was illustrated by Danish guest artist Mikkel Sommer. The doodle is spelled out in illustrations that show Gram doing an experiment, his round glasses, a microscope and bacteria.

 

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