What is staining?

Staining is a technique used in microscopy and histology to enhance the contrast of biological specimens, making specific structures or components more visible under the microscope. This process involves applying various chemical dyes or stains to the sample, which selectively bind to different cellular components, such as proteins, DNA, RNA, or lipids. Staining allows researchers and pathologists to visualize and analyze the morphology, distribution, and behavior of cells and tissues, aiding in the diagnosis of diseases, understanding biological processes, and conducting scientific research. There are many different types of stains available, each targeting specific cellular structures or molecules.