IN 1884 a Dane, Christian Gram, while working in Berlin, discovered a method of staining micro-organisms which has gone under his name ever since that date1. Although the method is in daily use by ...

Being a cationic dye, crystal violet can be used to stain negatively charged polymers such as DNA 18 and cell walls of bacteria, the latter of which is partially the basis of Gram staining to ...

The Gram stain procedure was developed by Hans Christian Gram in the 1800s and ... The lipopolysaccharide endotoxin that resides in the outer membrane can cause a toxic reaction or strong immune ...

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 ...