Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories reflect big differences in the microbes' biology, and they also dictate ...

This medium is both selective and differential. The selective ingredients are the bile salts and the dye, crystal violet which inhibit the growth of Gram-positive bacteria. The differential ingredient ...

That process led to the group discovering a lasso peptide that exhibited broad-spectrum antibiotic activity and was effective at killing both gram-positive and gram-negative pathogenic bacteria, along ...

Today you will finish up testing for both gram positive and gram negative organisms. There are few tests that can be read immediately that we call rapid tests. These are often useful initial steps to ...

His work led to the discovery of tyrothricin and gramicidin from Bacillus brevis, which were both potent against gram positive bacteria but were too toxic to use in humans. In 1939, encouraged by ...

While developing effective antibiotics against gram-positive bacteria is relatively straightforward, gram-negative bacteria present a greater challenge due to their extra protective membrane ...

Its research and development pipeline includes early-stage antibiotic candidates that target other Gram-positive bacteria, including Methicillin-Resistant Staphylococcus aureus, Vancomycin ...