Hans Christian Joachim Gram was born on September 13, 1853, in Copenhagen, Denmark. He studied at the University of Copenhagen, where his study of plants introduced him to the fundamentals of ...

What is a sputum Gram’s stain? A sputum Gram’s stain is a laboratory test that allows your doctor to diagnose a bacterial infection in your respiratory tract. They may order it if you have symptoms of ...

Gram staining is one way scientists can identify bacteria. Gram-positive bacteria, such as Staphylococcus, appear blue or purple under a microscope when scientists apply a stain. Conversely, ...

Staining is one of the most important steps in the preparation of biological microscope slides. First destroy the selective permeability of the cell membrane, and then use the dye to immerse the ...

Google is celebrating the 166th birth anniversary of microbiologist Hans Christian Joachim Gram with a doodle in his honour. Gram was born on September 13, 1853, in Denmark’s Copenhagen. Gram is best ...

To determine the effectiveness of Gram staining of tracheal aspirates for predicting causative microorganisms and guiding appropriate initial antibiotic therapy to treat ventilator-associated ...