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US 12,678,792 B2Granted
Methods for conducting multiplexed assays
AssigneeMeso Scale Technologies, LLC.
InventorsEli N. Glezer, Sudeep Kumar, Pankaj Oberoi, George Sigal, Michael Tsionsky
Life of this patent
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Abstract
The invention relates to methods for conducting solid-phase binding assays. One example is an assay method having improved analyte specificity where specificity is limited by the presence of non-specific binding interactions.
Claims26
A method of conducting a multiplexed binding assay for a plurality of analytes comprising a first analyte of interest and a second analyte of interest comprising
- (a) combining, in one or more steps, the following components:
- (i) a sample comprising the plurality of analytes comprising the first analyte of interest and the second analyte of interest,
- (ii) a first targeting agent immobilized on a first binding domain, wherein the first targeting agent comprises an oligonucleotide,
- (iii) a first targeting agent complement connected to a first linking agent, wherein the first targeting agent complement comprises an oligonucleotide which is complementary to the oligonucleotide of the first targeting agent and forms a first oligonucleotide pair,
- (iv) a first binding reagent connected to a first supplemental linking agent, wherein the first binding reagent is a binding partner of the first analyte of interest,
- (v) a second targeting agent immobilized on a second binding domain, wherein the second targeting agent comprises an oligonucleotide,
- (vi) a second targeting agent complement connected to a second linking agent, wherein the second targeting agent complement comprises an oligonucleotide which is complementary to the oligonucleotide of the second targeting agent and forms a second oligonucleotide pair, and
- (vii) a second binding reagent connected to a second supplemental linking agent, wherein the second binding reagent is a binding partner of the second analyte of interest, wherein,
- the first linking agent binds to the first supplemental linking agent and the second linking agent binds to the second supplemental linking agent,
- (b) forming
- (i) a first binding complex on the first binding domain comprising the first targeting agent, the first targeting agent complement, the first binding reagent and the first analyte of interest, and
- (ii) a second binding complex on the second binding domain comprising the second targeting agent, the second targeting agent complement, the second binding reagent and the second analyte of interest, and
- (c) measuring the amount of the first analyte of interest and second analytes analyte of interest on the first binding domain and the second binding domain, respectively.
10 more elements
Dependencies are inferred from the claim text.