Evidence map›Paper›PMID 32893488›Full record

ArticleAdvanced healthcare materials2021

Sequential Protein Capture in Multiplex Single Molecule Arrays: A Strategy for Eliminating Assay Cross-Reactivity.

Tal Gilboa, Adam M Maley, Alana F Ogata, Connie Wu, David R Walt

Open access · bronzeAbstract read
In one paragraph

Article in Advanced healthcare materials, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Ultrasensitive Enzyme-Free Detection of Proteins on Magnetic Beads.Journal of the American Chemical Society · 2026
    Article
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  4. Review
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  7. Article
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  9. Article
  10. Emerging Advances of Detection Strategies for Tumor-Derived Exosomes.International journal of molecular sciences · 2022
    Review
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  14. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Tal GilboaDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
Adam M MaleyDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
Alana F OgataDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
Connie WuDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
David R WaltDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.ORCID 0000-0002-5524-7348
Brigham and Women's Hospital · US

Funding

Development of an Ultrasensitive Point-of-Care Salivary Diagnostic for Mild Traumatic Brain InjuryF32EB029777 · NIBIB · BRIGHAM AND WOMEN'S HOSPITAL · PI WU, CONNIE · 2020 to 2021
$131k
Good Ventures Open PhilanthropyNIBIB NIH HHS F32 EB029777NIH HHS 1F32EB029777-01
6 · The paper itself

Abstract

Measurements of multiple biomolecules within the same biological sample are important for many clinical applications to enable accurate disease diagnosis or classification. These disease-related biomarkers often exist at very low levels in biological fluids, necessitating ultrasensitive measurement methods. Single-molecule arrays (Simoa), a bead-based digital enzyme-linked immunosorbent assay, is the current state of the art for ultrasensitive protein detection and can detect sub-femtomolar protein concentrations, but its ability to achieve high-order multiplexing without cross-reactivity remains a challenge. Here, a sequential protein capture approach for multiplex Simoa assays is implemented to eliminate cross-reactivity between binding reagents by sequentially capturing each protein analyte and then incubating each capture bead with only its corresponding detection antibody. This strategy not only reduces cross-reactivity to background levels and significantly improves measurement accuracies, but also enables higher-order multiplexing. As a proof of concept, the sequential multiplex Simoa assay is used to measure five different cytokines in plasma samples from Coronavirus Disease 2019 (COVID-19) patients. The ultrasensitive sequential multiplex Simoa assays will enable the simultaneous measurements of multiple low-abundance analytes in a time- and cost-effective manner and will prove especially critical in many cases where sample volumes are limited.

Indexed as

Biological AssayCalibrationCOVID-19Cross ReactionsCytokinesHumansProteinsReproducibility of ResultsSARS-CoV-2CytokinesProteinscross-reactivityELISAmultiplex assaySimoaultrasensitive protein detection

Identifiers

PMID32893488
PMCPMC8238389
OpenAlexW3083353332

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.