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 ...

semapimod sensitizes Gram-negative bacteria to drugs that are typically only active against gram-positive bacteria. Valeri ...

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 ...

Bacteria are classified as either Gram-negative or Gram-positive based on their cell wall structure—Gram-negative bacteria have a thick layer of protection, making them difficult to kill. Most ...

In gram-negative bacteria, the most common mechanism of resistance is the hydrolysis, or breaking apart, of the antibiotics by enzymes referred to as the beta-lactamases. There are two broad classes ...

Infections by multidrug resistant organisms (MDROs) are a global health threat with a worrying increasing trend. In fragile ...

Research scientist Bradley Lusk, first author of the study, was curious about what happens to protons in the microenvironments of these bacteria during biodegradation: “If you produce too many ...

A specialized protein produced by the immune system that helps destroy disease-causing organisms. An antibody is a component of humoral immunity. Antibodies can be effective defenders against both ...