One-site,noncompetitive Signal immunoassays The unknown analyte in the sample binds with labelled d.The unbound es art antibodies are measured.The intensity of the signal is directly sist of an analyte 【to the amount of known analyte Two-site,noncompetitive immunoassays The analyte in the unknown sample is bound to the antibody site,then labelled anti ody is bound to the analyte.The amount of labelled dy on th ly prop displaces b und labelled a lyte.which pe is also is then detected or measured if the analyte is not present in the unknown sample.This ty known as sandwich assay as the analyte is"sandwiched"between two antibodies. Examples Clinical tests wierae ofmediaaremmyallmhiscMmy s are cliniays,which disease.insulin to assess hyr mia some immunoa ays for the detection and/or quantitative measur emen 2a时 Sports anti-doping analysis e used in s orts anti-dopi Research Photoacoustic Immunoassay The photoacoustic immunoassay measures low-frequency acoustic signals generated by metal nanoparticle tags.Illuminated by a modulated light at a plasmon resonan dcoustic signal.which can be measured usingmiavelength.the nanoparticles generate strong toteraowtests.which use olssay can See also ·ELISA