{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"The PolyDetector HRP Green Substrate-Chromogen Kit is suitable for use with peroxidase detection systems, which allow the demonstration of cell antigens or nucleic acids in paraffin-embedded tissues, cryostat sections, cytosmears, and cell preparations. The substrate-chromogen is the final step in the detection portion; it enables the antibody-antigen or nucleic acid complex to be viewed under a light microscope. This occurs because HRP Green acts as an electron donor in the presence of the enzyme horseradish peroxidase; HRP Green gets oxidized and produces a vibrant green color at the site of the target antigen or nucleic acid. This substrate-chromogen is particularly useful in tissues where there is endogenous melanin or with multiplex IHC or CISH."}]}]}