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A novel technique for viable cell determinations.

N P Singh, R E Stephens

    Stain Technology
    |September 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a straightforward cell viability assay using Hoechst 33258 and acridine orange fluorescent dyes. Live cells appear green and dead cells appear blue, offering a simple method for cell health assessment.

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    Area of Science:

    • Biotechnology
    • Cell Biology
    • Biochemistry

    Background:

    • Accurate cell viability assessment is crucial for biological research and drug discovery.
    • Existing methods may require multiple filters or be sensitive to experimental conditions.

    Purpose of the Study:

    • To develop a simple, cost-effective, and reliable method for determining cell viability.
    • To utilize dual-color fluorescence for simultaneous live and dead cell discrimination.

    Main Methods:

    • Utilized a combination of two fluorescent dyes: Hoechst 33258 and acridine orange.
    • Optimized dye concentrations for Hoechst 33258 (0.25-2 µg/ml) and acridine orange (1-5.0 µg/ml).
    • Employed a single set of filters for simultaneous visualization of both dyes' fluorescence.

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    Main Results:

    • Dead cells exhibited brilliant blue fluorescence, while live cells showed green fluorescence.
    • The method demonstrated insensitivity to a wide range of exogenous serum concentrations.
    • High uniformity in readings was observed across different observers.

    Conclusions:

    • The developed dual-dye fluorescence method provides a simple and effective means for cell viability determination.
    • This technique is robust, adaptable to various experimental settings, and requires minimal optical equipment.
    • It offers a reliable alternative for routine cell health assessment in research laboratories.