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Updated: Jul 8, 2026

Use of an Influenza Antigen Microarray to Measure the Breadth of Serum Antibodies Across Virus Subtypes

Use of an Influenza Antigen Microarray to Measure the Breadth of Serum Antibodies Across Virus Subtypes

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Overprint immunoassay using protein A microarrays.

Robert S Matson¹, Raymond C Milton, Jang B Rampal

¹Beckman Coulter, Inc., Fullerton, CA, USA.

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

|January 29, 2008

Summary

This summary is machine-generated.

Overprint immunoassays enable microarray-based assays without wells, reducing reagent use by 1000-fold. This novel method achieves high sensitivity using nanoliter volumes for micro-ELISA development.

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Area of Science:

Biotechnology
Assay Development
Microarray Technology

Background:

Conventional immunoassays often require wells and significant reagent volumes.
Microarray technology offers potential for miniaturization and parallel processing.

Purpose of the Study:

To demonstrate microarray-based immunoassays without fluid barriers using overprinting technology.
To develop a micro-ELISA with reduced reagent consumption and high sensitivity.

Main Methods:

Utilized contact and noncontact microarray printing for spotted arrays.
Employed site-specific, parallel dispensing of assay components in nanoliter volumes.
Developed a micro-ELISA using Protein A as a universal microarray surface.

Main Results:

Achieved overprint immunoassays without the need for wells or fluid barriers.
Demonstrated a 1000-fold reduction in reagent consumption compared to traditional assays.
Obtained sensitivity levels comparable to conventional methods despite using nanoliter volumes.

Conclusions:

Overprint immunoassays represent a significant advancement in assay miniaturization and efficiency.
This technology enables sensitive immunoassays with drastically reduced reagent requirements.
The micro-ELISA developed shows promise for high-throughput, low-volume diagnostic applications.