Alcian Yellow Toluidine Blue is used for visualisation of H. pylori found in endoscopic and surgical stomach samples. In the first step Alcian Yellow is specifically bound for previously oxidized mucins; gastric bacteria are stained afterward, as well as cellular nuclei and other structures using Toluidine Blue. This provides excellent contrast between dark blue stained bacteria placed on a yellow surface and extracellular foveolar mucins.
Alcian Yellow Toluidine Blue kit
Six-reagent kit for staining Helicobacter pylori in gastric tissue sections. This method is one of the most popular non-silver methods for staining of H. pylori, where bacteria are stained blue in contrast to yellow mucins.
Field kit 500ml
Ready to use two-reagent kit for rapid and efficient staining and detection of parasites in haematology samples. Primarily used for staining thin and thick blood smears (dense drop) for purpose of diagnosing blood parasites. Reagents are stored in containers that can be used as staining jars.
BioGram ECO kit
Four-reagent phenol-free kit for the identification of bacteria according to Gram. Kit contains Gram Crystal violet, phenol free reagent, Gram Sodium hydrogencarbon, solution, stabilized Gram Lugol solution, double amount of Gram Decolorizer solution 2 and Gram Safranin solution as counterstain.
2×50 mL+4×100 mL bottles
Mallory Trichrome kit
Three-reagent staining kit for connective tissue visualisation and detection of collagen, cartilage, muscle, elastic fibres, mucous, pituarity cells, reticulum, bones, amyloid and erythrocytes.
P.A.S. Diastase Kit
BioGnost’s P.A.S. Diastase kit is most commonly used for identifying glycogen in liver. Periodic acid enables the molecules containing glycol groups to create aldehydes affected by Schiff’s reagent staining them violet (magenta). Specific stains are created by applying the PAS method on unsubsti-tuted polysaccharides, mucoproteins and glycoproteins, glycolipids and phospholipids. Alpha-amylase enzyme (also known as diastasis) is used for differentiation between glycogen and other PAS-positive structures by dissolving 1→4 glycosidic bonds, causing the glycogen to remain unstained after the PAS reaction. BioGnost’s P.A.S. Diastase kit uses thermostable enzyme which does not require heating to +37°C to be active, but incubat-ing the section at +37°C is preferred in order to achieve better glycogen breakdown. The same tissue section is used as negative control for this reaction, but the sample is not treated using alpha-amylase.
For 100 tests.