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Multiplexed Fluorometric ImmunoAssay Testing Methodology and Troubleshooting
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Multi-cartridge Fluorescence Reader for Quantitative Immunoassays.

Lalitha Pratyusha Bheemavarapu, Malay Ilesh Shah, Jayaraj Joseph

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    |January 18, 2020
    PubMed
    Summary
    This summary is machine-generated.

    A new camera-based fluorescence reader analyzes four lateral flow immunoassays (LFIA) simultaneously for point-of-care diagnostics. This rugged, low-intervention system offers faster results than current LFIA readers.

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    Area of Science:

    • Biomedical Engineering
    • Analytical Chemistry
    • Medical Diagnostics

    Background:

    • Lateral flow immunoassays (LFIA) are crucial for point-of-care (POC) diagnostics, enabling early disease detection.
    • POC diagnostics are vital for remote areas and self-monitoring due to their simple infrastructure.

    Purpose of the Study:

    • To develop and validate a camera-based multi-cartridge fluorescence reader for LFIA.
    • To assess the system's performance, speed, and accuracy compared to existing LFIA readers.

    Main Methods:

    • Designed a reader system with four slots for simultaneous analysis of LFIA cartridges.
    • Employed camera-based fluorescence detection and developed associated software algorithms.
    • Validated the system using HbA1C samples, determining correlation and calibration equations.

    Main Results:

    • The system successfully performed simultaneous analysis of four LFIA cartridges.
    • Achieved high repeatability across slots with a % coefficient of variation below 6%.
    • Demonstrated a lower average test time compared to available LFIA readers.

    Conclusions:

    • The developed camera-based reader is a simple, rugged, and efficient tool for POC LFIA.
    • The system shows promise for accurate and rapid diagnostics, with potential for future improvements.