Patent ID: 7015046

Claim:
A method for conducting an electrochemiluminescence binding assay for detecting or measuring an analyte of interest in a sample comprising: (a) contacting an assay electrode with a sample and a component of said assay linked to an electrochemiluminescent label, said assay electrode: (i) comprising a composite containing a polymer matrix and a multiplicity of carbon particles dispersed therein; and (ii) having a binding domain containing a binding reagent, wherein said binding reagent is immobilized on said electrode; (b) applying a voltage waveform effective to trigger electrochemiluminescence at said binding domain in the presence of a reaction medium suitable for conducting an electrochemiluminescence assay; and (c) detecting or measuring electrochemiluminescence from said binding domain; wherein said detected or measured electrochemiluminescence correlates to the presence or amount of said analyte in said sample.