Phosphate-buffered saline (PBS)

Phosphate-buffered saline (PBS) is a saltwater solution commonly used in laboratory settings to maintain a stable environment for biological samples. It contains several salts and phosphate, which help keep the pH balanced, mimicking the natural conditions found in living organisms. Researchers use PBS for washing cells, diluting substances, and preserving samples, as it helps prevent changes that could damage the samples or affect experimental results. Its ability to maintain stability makes PBS an essential tool in biological and medical research.