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Zonal unit-gravity elutriation. A new technique for separating large cells and multicellular complexes from cell
Cell Biophysics
|December 1, 1985
Summary
Zonal unit-gravity elutriation is a novel technique for separating large cells and organisms from small cells. This method achieves high enrichment and recovery of target particles, including parasites and specific cell types.
Area of Science:
- Biotechnology
- Cell Biology
- Parasitology
Background:
- Separating specific cell types or organisms from complex biological suspensions is challenging.
- Existing methods may lack efficiency or specificity for large or delicate particles.
Purpose of the Study:
- To introduce a new, simple technique for separating large cells, multicellular complexes, or small organisms from suspensions.
- To demonstrate the efficacy of zonal unit-gravity elutriation in enriching specific biological entities.
Main Methods:
- Utilizes a conical separation chamber with controlled fluid dynamics.
- Employs a density-gradient-stabilized medium pumped against particle sedimentation at unit-gravity.
- Adjustable flow rates allow for separation based on sedimentation velocity.
Main Results:
- Successfully separates tumor cells and enriches larger blast cells from lymphoid suspensions.
- Achieves complete separation of thymic nurse cells and enrichment of thymic rosettes.
- Demonstrates complete purification and high enrichment (4 x 10^5-fold) of Taenia taeniaformis larvae from liver suspensions in 30 minutes.
Conclusions:
- Zonal unit-gravity elutriation is an effective and efficient method for isolating specific large cells, complexes, and organisms.
- The technique offers high purity, enrichment, and recovery, with broad applications in cell biology and parasitology.