A multiwell cell settling and adherence chamber for morphology and differential counting

Area of Science:

• Cell biology
• Microscopy techniques
• Biomedical engineering

Background:

• Accurate cell counting and morphological identification are crucial in biological research and diagnostics.
• Traditional methods for preparing cell monolayers can be time-consuming and may result in uneven cell distribution.
• Improving cell sample preparation is essential for reliable analysis.

Purpose of the Study:

• To describe a novel, simple multiwell chamber for preparing randomly distributed cell monolayers on microscope slides.
• To provide a method suitable for morphological identification and differential cell counting.
• To optimize cell recovery and monolayer quality for microscopic analysis.

Main Methods:

• A multiwell chamber with eight wells was used, applying 50-microliter cell suspensions (10^3-10^6 cells/ml).
• Fluid was wicked away using filter paper, allowing cells to settle and form monolayers.
• Centrifugation (50 x g for 30 seconds) was optionally applied immediately after cell addition.

Main Results:

• The method produced completely dry cell monolayers within 20-40 minutes, suitable for staining and morphological assessment.
• Centrifugation improved cell recovery to nearly 100%, enabling detection of as few as 50 cells/50 microliters.
• Random cell distribution was confirmed by agreement between predicted and observed differential counts of cell mixtures.

Conclusions:

• The described multiwell chamber provides an efficient and simple method for preparing high-quality cell monolayers.
• The technique ensures random cell distribution, excellent morphology, and high cell recovery, facilitating accurate cell analysis.
• This method is valuable for applications requiring precise morphological identification and differential cell counting.