Abstract: Disclosed herein is a composition for ultrasensitive bioassay applications. The composition includes a plurality of dispersible, nanoparticles having a size less than 500 nm. The nanoparticles contain a metal catalyst or a metal catalyst precursor. The nanoparticles are conjugated to at least one biospecific binding reactant that is selectively reactive with a target analyte. The composition includes a dispersing medium. A method and a kit for conducting bioassays are described.
Abstract: Disclosed herein is a composition for ultrasensitive bioassay applications. The composition includes a plurality of dispersible, nanoparticles having a size less than 500 nm. The nanoparticles are contain a metal catalyst or a metal catalyst precursor. The nanoparticles are conjugated to at least one biospecific binding reactant that is selectively reactive with a target analyte. The composition includes a dispersing medium. A method and a kit for conducting bioassays is described.
Abstract: The invention relates to ultrasensitive bioanalytical assays based on the use of high-gain catalytic chemical amplification methods. The ultrasensitive bioanalytical assays of the invention utilize high gain catalytic chemical amplification methods to detect the presence and to quantify the concentrations of target analytes labeled with specific binding reagents or biomarkers comprising a catalyst or a catalyst precursor.
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