toluidine blue


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Related to toluidine blue: methylene blue, toluidine blue dye
A toxic metachromatic thiazine dye used to stain ‘thick’ sections for electron microscopy, which may cause haematuria due to haemorrhagic cystitis and methaemoglobulinuria. Toluidine blue should be avoided by patients with glucose-6-phosphate deficiency, given their risk of haemolytic anaemia

toluidine blue

an antiheparin compound, used also as a biological stain. Called also tolonium chloride.

toluidine blue test
a screening test for mucopolysaccharidosis, e.g. Hurler's syndrome; filter paper impregnated with toluidine blue turns blue when moistened with urine containing excessive amounts of chondroitin sulfuric acid.
References in periodicals archive ?
Session 1: With 30 minutes of prep work, the instructor can prepare 10 slides each of thin sections of pear stained with toluidine blue, apple stained with toluidine blue, potato stained with Lugol's solution, and unstained samples of all three specimens.
However, despite a satisfactory differentiation in contrast achieved between the natural brown color of the coating and the turquoise color of wood cell walls after Toluidine Blue staining, LM proved unsatisfactory for examining the wood-coating interface regions at high magnifications because of its inability to bring the distorted surface wood tissues, underlying parent tissues, and the coating film into the same focal plane.
5 the grafted layer of PCL2 is revealed using toluidine blue.
These results confirm that a topical application of our toluidine blue, rather than the traditional systemic administration of a photosensitizer and its attendant side effects, may provide an effective alternative to current PDT modalities.
Toluidine blue cytometry test for sperm DNA conformation: comparison with the flowcytometric sperm chromatin structure and TUNEL assays.
The samples were cut into 5-[micro]m sections and prepared for toluidine blue O staining to evaluate cartilage degeneration.
Supra vital stain Toluidine Blue (TB) has been used to mark the area for biopsy and to mark the full extent of premalignant lesion.
Objective: To use toluidine blue intra-operatively to identify tumour involved margins after the removal of oral cavity squamous cell carcinoma, and to compare the findings with those of final histopathology.
The mast cells are CD117 positive9 and the granules take up toluidine blue and Giemsa stain.