Principle of Assay
Human Elastin-Derived Peptides ELISA Kit (A302954) is a 4 hour sandwich Enzyme-Linked Immunosorbent Assay (sELISA) designed for the in vitro quantitative determination of human Elastin-Derived Peptides in serum, plasma, tissue homogenates, and other biological fluids. A 96-well microtiter plate has been pre-coated with an antibody specific for Elastin-Derived Peptides. Standards and samples are added to the wells, where Elastin-Derived Peptides binds to the immobilized capture antibody. Following incubation, unbound components are removed by washing and a biotinylated detection antibody specific for Elastin-Derived Peptides is added to the wells. The detection antibody binds the captured Elastin-Derived Peptides to form an antibody-antigen-antibody sandwich complex. After further incubation and washing, HRP-Streptavidin conjugate is added to the wells. TMB substrate solution is then added to visualize the HRP enzymatic reaction. This produces a blue-coloured product that changes to yellow following addition of acidic stop solution. The intensity of the yellow colour is directly proportional to the amount of Elastin-Derived Peptides captured in each well. The concentration of Elastin-Derived Peptides is calculated by reading the absorbance at 450 nm and comparing the values with the standard curve.