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Automated Nanoliter Volume Assay Optimization on a Cost-Effective Microfluidic Disc.

Renna L Nouwairi¹, Carter K Jones¹, Maura E Charette¹

¹Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States.

Analytical Chemistry

|December 28, 2024

Summary

This summary is machine-generated.

This study introduces a novel microfluidic disc for cost-effective, automated assay optimization. It enables precise nanoliter-scale reagent metering, reducing time and reagent waste in complex experiments.

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Area of Science:

Biotechnology
Microfluidics
Assay Development

Background:

Multireagent assay optimization is traditionally time-consuming and reagent-intensive.
Miniaturization via microfluidics offers potential for reduced volumes and parallelization.
Scaling to nanoliter volumes without droplets remains a challenge.

Purpose of the Study:

To develop a cost-effective, customizable centrifugal microdisc for assay optimization.
To enable precise nanoliter-scale reagent metering for complex assays.
To reduce manual intervention and reagent consumption in experimental workflows.

Main Methods:

A centrifugal microdisc platform with automated two-stage metering was designed.
Tunable, laser-actuated valves were employed to control fluidic volumes.
The system was validated for metering discrete nanoliter volumes of reagents.

Main Results:

Demonstrated precise metering of approximately 150 nanoliter (nL) volumes.
Showcased controlled, parallelized delivery of up to four reagents.
Validated the system's capability for rapid, cost-effective assay optimization.

Conclusions:

The microfluidic disc provides a scalable solution for nanoliter-scale assay optimization.
This technology significantly reduces reagent consumption and manual labor.
It offers a versatile platform for diverse applications requiring precise multi-reagent handling.