GUWAHATI,September 13, 2019: Friday din Google Doodle khan para Danish microbiologist Hans Christian Gram kun ke janeh gram stain bona nimete janaa toh tai laga 166th birthday manishe.
Source khan kuwa hisaab te Google Doodle te Danish artist Mikkel Sommer para dikhaishe aro etu para Hans Christian Gram’s work Gram stain laga dikhaishe . Gram toh 1853 Copenhagen te jonom kurishe.
Hans Christian Gram toh tai laga MD toh University of Copenhagen 1878 te kurishe.aro etu pichede Europe te jaishe bacteriology and pharmacology pudibole nimete .
Berlin laga microbiologist laga kaam kura time te tai janishe ekta bacteria smear crystal violet stain logote etu pichede iodine solution aro organic solvent,para alag alag structure aro biochemical function toh alag ase.
1884 te tai laga findings olaishe ekta journal te etu para terms ‘Gram-positive’ aro ‘Gram-negative’ terms coin kurishe.
Gram-positive bacteria toh purple nishena ase microscope bithor te kile koile toh tai khan laga cell walls toh thick ase etu solvent toh penetrate kuribole napareh.Aro Gram-negative bacteria logote thinner cell walls etu solvent to stain para dhulai jaishe.
Etu test toh prove toh applicable ase aro tai laga staining method toh etia tak chulaishe bishi sal pichede .
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