Gelatin is a hydrocolloid and is rich in glycine, proline and hydroxyproline, which impart structural stability. It is synthesized from the alkaline digestion of collagen from bovine skin and is referred as type B. It has wide applications in food industry.

Papanicolaou’s stain is a multichromatic (multicolored) cytological staining technique.The Papanicolaou stain is one of the most widely used stains in cytology, where it is used to aid pathologists in making a diagnosis.

HiMedia is delivering a range of chemicals and reagents for use in the development of diagnostic lateral flow immunoassays. These chemicals and reagents have been tested for their physical, chemical and functional characteristics to improve the reliability of results.

Haematoxylin (Harris) is used for general purpose nuclear stain and for histological studies. Haematoxylin and eosin are the principle stains used for the demonstration of nucleus and the cytoplasmic inclusions. Alum acts as a mordant and haematoxylin containing alum stains nucleus light blue which turns red in the presence of acid. The cell differentiation is achieved by treating the tissue with acid solution.

Eosin is tetra bromofluorescein (a substituted xanthene), a red acidic dye and fluorochrome. The dye is very soluble in ethyl alcohol. Eosin, 2% w/v is the most commonly used as counterstain for hematoxylin and it is also used for monochrome staining of bacteria.

Fixative is recommended to fix cytological and histological samples specially vaginal smear (for PAP staining). It preserve cellular morphology of specimen sample