Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories ...

Solid-state NMR analysis of Bacillus subtilis biofilms reveals critical phases of maturation and dispersal, impacting medical and industrial applications.

After they have collected the sample, they will send it to a laboratory for testing. A technician will use a special staining technique to make it easier to see bacteria under a microscope.

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.

Biologist Hans Christian Gram devised one of the most important staining techniques used in microbiology to identify bacteria under a microscope ...

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 a respiratory infection ...

News News: The Google doodle shows Gram carrying out an experiment, a close up of the bacteriologist, a microscope and bacteria particles.