Buffy Coat Isolation
Buffy Coat Isolation - Related Videos
02:45
Isolation of Peripheral Blood Mononuclear Cells from Human Buffy Coats
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2025
In this video, we demonstrate the isolation of peripheral blood mononuclear cells, PBMCs, containing monocytes and lymphocytes from a human buffy coat by density gradient centrifugation. The isolated PBMCs can be used for further analysis.
08:12
Isolation of Human Neutrophils from Whole Blood and Buffy Coats
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Cited by 11 •
2021
This protocol details a method for the isolation of neutrophils from whole blood, buffy coats, or leukapheresis membranes, achieving good yield, high purity, and minimal cell activation. We utilize gradient purification, red blood cell (RBC) sedimentation, and RBC lysis to obtain a high-quality/purity neutrophil preparation.
12:40
Preparation and Pathogen Inactivation of Double Dose Buffy Coat Platelet Products using the INTERCEPT Blood System
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Cited by 4 •
2012
This article describes the process used by Örebro University Hospital to produce double dose buffy coat platelet concentrates prepared from whole blood donations and treated with the INTERCEPT Blood System for pathogen inactivation. The in vitro quality of the final platelet units are evaluated over 7 days of storage.
10:52
Generation of Induced Pluripotent Stem Cells from Frozen Buffy Coats using Non-integrating Episomal Plasmids
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Cited by 26 •
2015
Induced pluripotent stem cells (iPSCs) represent a source of patient-specific tissues for clinical applications and basic research. Here, we present a detailed protocol to reprogram human peripheral blood mononuclear cells (PBMNCs) obtained from frozen buffy coats into viral-free iPSCs using non-integrating episomal plasmids.
04:30
Investigating Aortic Valve Calcification via Isolation and Culture of T Lymphocytes using Feeder Cells from Irradiated Buffy Coat
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Cited by 3 •
2021
In this study, we describe the process of T lymphocyte isolation from fresh samples of calcified aortic valves and the analytical steps of T cell-cloning for the characterization of the adaptive leukocyte subsets by using flow cytometry analysis.
FAQs
Centrifugation organizes whole blood according to density. Red blood cells move toward the bottom because they are denser, whereas plasma remains above them. Leukocytes and platelets become concentrated in the intermediate region, creating a distinct layer that can be identified and collected separately. This density contrast provides the physical basis for Buffy Coat Isolation.
The intermediate fraction contains concentrated nucleated cells, including leukocytes, along with platelets. This enrichment makes the collected material useful when researchers need accessible primary blood-derived cells rather than the original whole-blood mixture. Its cellular composition supports characterization, downstream culture, and evaluation of how engineered materials interact with immune-related cells.
The separated layers differ in both position and cellular content. Plasma occupies the upper region, erythrocytes sediment below it, and the buffy coat appears between these two fractions. The intermediate layer is identified by its enrichment in leukocytes and platelets, while the strong density difference from red blood cells helps maintain the separation during centrifugation.
The process begins with whole blood and density-based centrifugation to establish the plasma, intermediate buffy coat, and erythrocyte regions. After separation, the intermediate layer is carefully collected without unnecessarily disturbing the neighboring fractions. Standardized handling throughout collection helps preserve sample quality and supports more reproducible downstream cell characterization or culture.
Researchers may select this approach when they need accessible primary blood-derived cells for immune-cell studies, biomaterial evaluation, or tissue-engineering research. The resulting fraction can also support investigations of blood-derived therapeutics. These uses allow engineered systems to be examined with relevant cellular material rather than relying only on noncellular or less representative test conditions.
Buffy coat-derived material can help researchers characterize primary cells and assess cell-material interactions. Such analyses may reveal how blood-derived immune cells respond to engineered biomaterials or tissue-engineering environments. Because the fraction supports downstream culture and analysis, it can connect material evaluation with cellular behavior and contribute to the study of blood-derived therapeutic strategies.