What Staining Dyes are Frequently Used in Histology?

Staining is essential for differentiating cellular components and structures. The most widely used stains include Hematoxylin and Eosin (H&E). Hematoxylin stains cell nuclei blue, while eosin stains cytoplasmic components pink. Other specialized stains like Periodic Acid-Schiff (PAS) for carbohydrates and Masson's Trichrome for connective tissues are also routinely employed. The choice of dye depends on the specific structures or molecules that need to be visualized.