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EasySep&[trade] T75 Magnet: A Novel Magnetic Platform for Large-Volume Cell Isolation from Whole Blood and Leukapheresis Packs

2021· article· en· W4319433748 on OpenAlexaff
Garry MacDonald, Eric Toombs, Susan de Jong, Karina L. McQueen, Allen Eaves, Sharon A. Louis, Andy I. Kokaji

Bibliographic record

VenueThe Journal of Immunology · 2021
Typearticle
Languageen
FieldEngineering
TopicMicrofluidic and Bio-sensing Technologies
Canadian institutionsTerry Fox Research InstituteBC Cancer AgencyStemcell Technologies
Fundersnot available
KeywordsLeukapheresisWhole bloodPeripheral blood mononuclear cellRed blood cellChromatographyImmunomagnetic separationChemistryAndrologyImmunologyMedicineBiologyStem cellBiochemistryIn vitroCell biology

Abstract

fetched live from OpenAlex

Abstract Isolating cells from large volume-samples such as leukapheresis or whole blood bags is a common procedure that precedes many immunological studies. Working with large volumes can be challenging as the sample often needs to be split and processed in parallel, which can be tedious and may delay downstream studies. The EasySep™ T75 Magnet simplifies cell separation procedures when processing up to 225 mL of leukapheresis sample or 125 mL of whole blood, and is based on column-free immunomagnetic EasySep™ cell isolation technology. Negative selection protocols have been optimized for isolation of human T cells (purity: 95.3 ± 2.5%, n=5), CD4+ T cells (purity: 97.2 ± 1.4%, n=4), CD8+ T cells (purity: 91.9 ± 2.2%, n=5), and monocytes (purity: 91.5 ± 1.0%, n=3). Positive selection protocols have been optimized for isolation of CD3+ cells (purity: 95.4 ± 2.9%, n=9), CD4+ cells (purity: 88.8 ± 3.2%, n=3), CD8+ cells (purity: 95.1 ± 2.4%, n=6), and CD14+ cells (purity: 96.2 ± 0.7%, n=3). Protocols for depletion of red blood cells (RBCs) (residual RBCs: 2.5 ± 1.7%, n=5) and enrichment of peripheral blood mononuclear cells from whole blood (purity: 99.2 ± 0.5%, n=5) have also been developed. Notably, these protocols can be completed in 20 – 26 minutes, making the EasySep™ T75 Magnet the fastest and simplest method for isolating highly purified immune cells from large-volume whole blood and leukapheresis samples.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.005
Threshold uncertainty score0.016

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0050.007

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.012
GPT teacher head0.195
Teacher spread0.183 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreMethods

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations0
Published2021
Admission routes1
Has abstractyes

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