What is the standard thickness of tissue for IHC?

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Multiple Choice

What is the standard thickness of tissue for IHC?

Explanation:
Four to five micrometers is the typical thickness for paraffin-embedded tissue sections used in IHC. This thickness preserves enough cellular detail for accurate interpretation while allowing antibodies to diffuse evenly through the tissue. If sections are too thin (2-3 μm), they can be fragile and may lack sufficient context for proper staining assessment. If they're too thick (6-8 μm or more), antibody penetration becomes slower and less uniform, leading to uneven staining and higher background after antigen retrieval. So 4-5 μm offers the best balance for reliable, reproducible IHC results.

Four to five micrometers is the typical thickness for paraffin-embedded tissue sections used in IHC. This thickness preserves enough cellular detail for accurate interpretation while allowing antibodies to diffuse evenly through the tissue. If sections are too thin (2-3 μm), they can be fragile and may lack sufficient context for proper staining assessment. If they're too thick (6-8 μm or more), antibody penetration becomes slower and less uniform, leading to uneven staining and higher background after antigen retrieval. So 4-5 μm offers the best balance for reliable, reproducible IHC results.

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