Principle of Assay
Human Angiopoietin-2 ELISA Kit is based on the quantitative sandwich enzyme-linked immunosorbent assay technique to measure concentration of human ANG-2 in the samples. A monoclonal antibody specific for human ANG-2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and ANG-2 present is bound by the immobilized antibody. After washing away any unbound substances, a biotin-linked detect antibody specific for ANG-2 is added to the wells. Following a wash to remove any unbound antibody-biotin reagent, streptavidin-HRP is added. After washing, substrate solution is added to the wells and color develops in proportion to the amount of ANG-2 bound in the initial step. The color development is stopped and the intensity of the color is measured.