A new, fast and convenient method for layering blood or bone marrow over density gradient medium

Area of Science:

• Biomedical Engineering
• Cell Biology
• Hematology

Background:

• Lymphocyte and mononuclear cell isolation is crucial for various diagnostic and research applications.
• Conventional methods for density gradient centrifugation can be time-consuming and cumbersome.
• Existing techniques require careful layering of blood over density solutions.

Purpose of the Study:

• To develop and evaluate a novel density gradient dispenser for improved cell isolation.
• To provide a faster, easier, and more convenient method for preparing blood or bone marrow for density gradient centrifugation.
• To achieve efficient separation of lymphocytes and mononuclear cells.

Main Methods:

• A new density gradient dispenser was designed and utilized.
• Peripheral blood or bone marrow was placed in a centrifuge tube first.
• Density gradient solution was dispensed underneath the blood sample using the novel device.

Main Results:

• The dispenser facilitates a reversed layering technique compared to conventional methods.
• The new method produces an equivalent blood and density gradient suspension.
• The process was observed to be less cumbersome, faster, and more convenient.

Conclusions:

• The developed density gradient dispenser offers a significant improvement over traditional methods.
• This device streamlines the isolation of lymphocytes and mononuclear cells.
• The method enhances efficiency and ease of use in cell separation protocols.