The stain is most likely used in the image?

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Multiple Choice

The stain is most likely used in the image?

Explanation:
Amyloid detection is best demonstrated with a stain that binds specifically to the amyloid fibrils and shows up as a bright signal under fluorescence. Thioflavin S is a fluorochrome that binds to the beta-pleated sheet structure of amyloid and, when excited with blue/UV light, emits a vivid yellow-green fluorescence. In an image, that characteristic bright fluorescence points to Thioflavin S as the staining used, distinguishing it from routine stains like hematoxylin (blue nuclear stain) or eosin (pink cytoplasmic stain), or from DAB, which produces a brown precipitate in immunohistochemistry. So the appearance matches the fluorescent signal expected with Thioflavin S staining, indicating its use.

Amyloid detection is best demonstrated with a stain that binds specifically to the amyloid fibrils and shows up as a bright signal under fluorescence. Thioflavin S is a fluorochrome that binds to the beta-pleated sheet structure of amyloid and, when excited with blue/UV light, emits a vivid yellow-green fluorescence. In an image, that characteristic bright fluorescence points to Thioflavin S as the staining used, distinguishing it from routine stains like hematoxylin (blue nuclear stain) or eosin (pink cytoplasmic stain), or from DAB, which produces a brown precipitate in immunohistochemistry. So the appearance matches the fluorescent signal expected with Thioflavin S staining, indicating its use.

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