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A simple method for processing erythrocytes for scanning electron microscopy

C L Dewar, M W Wolowyk, J R Hill

    American Journal of Clinical Pathology
    |October 1, 1976
    PubMed

    Insights

    This study introduces a straightforward method for preparing red blood cells for scanning electron microscopy. This technique enhances visualization of red blood cell membrane defects for diagnostic purposes.

    Area of Science:

    • Biomedical Sciences
    • Cell Biology
    • Microscopy Techniques

    Background:

    • Erythrocytes, or red blood cells, are crucial for oxygen transport.
    • Identifying erythrocyte membrane defects is important for diagnosing various pathologic states.
    • Current light microscopy methods may not reveal subtle membrane abnormalities.

    Purpose of the Study:

    • To present a simple and effective method for preparing erythrocytes for scanning electron microscopy (SEM).
    • To enable visualization of erythrocyte membrane defects not discernible with light microscopy.
    • To establish a routine processing protocol for diagnostic applications.

    Main Methods:

    • Sequential fixation of erythrocytes using glutaraldehyde.
    • Dehydration of erythrocytes in a graded series of alcohols.
    • Preparation for scanning electron microscopy imaging.

    Main Results:

    • The described method allows for clear visualization of erythrocyte surface morphology.
    • Subtle membrane defects, previously unseen, become apparent under SEM.
    • The protocol is straightforward and suitable for routine laboratory use.

    Conclusions:

    • The presented glutaraldehyde fixation and alcohol dehydration method is a valuable tool for SEM analysis of erythrocytes.
    • This technique improves the diagnostic capability for identifying erythrocyte membrane pathologies.
    • It offers a simple yet powerful approach for routine erythrocyte examination.

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