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Enzyme-Linked Immunosorbent Assay

Enzyme-Linked Immunosorbent Assay

In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or...

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Multiplex Detection of Bacteria in Complex Clinical and Environmental Samples using Oligonucleotide-coupled Fluorescent Microspheres

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Published on: October 23, 2011

Multiplex ELISA Using Oligonucleotide Tethered Antibodies.

Robert S Matson¹

¹QuantiScientifics LLC, 2852 Alton Parkway, Irvine, CA, 92606, USA, rsmatson@quantiscientifics.com.

Methods in Molecular Biology (Clifton, N.J.)

|July 11, 2015

Summary

Multiplex assays enable simultaneous measurement of multiple disease biomarkers. This novel microarray immunoassay technology offers more accurate diagnostics and potentially lower costs per test.

Area of Science:

Biotechnology
Immunodiagnostics
Molecular Diagnostics

Background:

Multiplex assays offer significant advantages over single-analyte tests.
Simultaneous measurement of multiple biomarkers aids in accurate disease diagnosis and prognosis.
Current multiplexing methods can be costly and complex.

Purpose of the Study:

To introduce a novel multiplex immunoassay technology.
To develop a cost-effective and efficient diagnostic platform.
To leverage self-assembly for creating diagnostic microarrays.

Main Methods:

Development of oligonucleotide-antibody conjugates.
Creation of microarrays within microtiter plates via self-assembly.
Utilizing the multiplex immunoassay for simultaneous analyte detection.

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Main Results:

Successfully created microarrays in microtiter plates using self-assembling conjugates.
Demonstrated the feasibility of multiplexed detection of analytes.
The technology shows potential for reduced reagent and sample requirements.

Conclusions:

The novel multiplex immunoassay technology offers a promising approach for advanced diagnostics.
Self-assembly of oligonucleotide-antibody conjugates provides an efficient method for microarray formation.
This technology has the potential to reduce diagnostic costs and improve accuracy.