Evidence map›Paper›PMID 35263100›Full record

ArticleAnalytical chemistry2022

Electrochemical Immunoassay for the Detection of SARS-CoV-2 Nucleocapsid Protein in Nasopharyngeal Samples.

Isabelle C Samper, Catherine J McMahon, Melissa S Schenkel, Kaylee M Clark, Wisarut Khamcharoen, Loran B R Anderson, James S Terry, Emily N Gallichotte, Gregory D Ebel, Brian J Geiss and 2 more

Open access · greenAbstract read
In one paragraph

Article in Analytical chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

16 citing papers in PubMed, 47 citations in OpenAlex.

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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

12 authors at 2 institutions in 2 countries.

Isabelle C SamperDepartment of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
Catherine J McMahonDepartment of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
Melissa S SchenkelDepartment of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
Kaylee M ClarkDepartment of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
Wisarut KhamcharoenDepartment of Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand.
Loran B R AndersonDepartment of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.
James S TerryDepartment of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.
Emily N GallichotteDepartment of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.
Gregory D EbelDepartment of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.
Brian J GeissDepartment of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.
David S DandyDepartment of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, United States.
Charles S HenryDepartment of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.ORCID 0000-0002-8671-7728
Colorado State University · USSrinakharinwirot University · TH

Funding

CSU Infectious Disease Research and Response Training ProgramT32AI162691 · NIAID · COLORADO STATE UNIVERSITY · PI DEAN, GREGG A · 2021 to 2025
$2.1M
Mechanism of Flavivirus RNA CappingR01AI132668 · NIAID · COLORADO STATE UNIVERSITY · PI GEISS, BRIAN · 2018 to 2022
$1.9M
A SARS-CoV-2 NFC ePAD BiosensorR01EB031510 · NIBIB · COLORADO STATE UNIVERSITY · PI DANDY, DAVID S, GEISS, BRIAN · 2021 to 2022
$1.0M
NIAID NIH HHS R01 AI132668NIAID NIH HHS T32 AI162691NIBIB NIH HHS R01 EB031510
6 · The paper itself

Abstract

Point-of-care (POC) methods currently available for detecting SARS-CoV-2 infections still lack accuracy. Here, we report the development of a highly sensitive electrochemical immunoassay capable of quantitatively detecting the presence of the SARS-CoV-2 virus in patient nasopharyngeal samples using stencil-printed carbon electrodes (SPCEs) functionalized with capture antibodies targeting the SARS-CoV-2 nucleocapsid protein (N protein). Samples are added to the electrode surface, followed by horseradish peroxidase (HRP)-conjugated detection antibodies also targeting the SARS-CoV-2 N protein. The concentration of the virus in samples is quantified using chronoamperometry in the presence of 3,3'5,5'-tetramethylbenzidine. Limits of detection equivalent to less than 50 plaque forming units/mL (PFU/mL) were determined with virus sample volumes of 20 μL. No cross-reactivity was detected with the influenza virus and other coronavirus N proteins. Patient nasopharyngeal samples were tested as part of a proof-of-concept clinical study where samples were also tested using the gold-standard real-time quantitative polymerase chain reaction (RT-qPCR) method. Preliminary results from a data set of 22 samples demonstrated a clinical specificity of 100% (

Indexed as

COVID-19SARS-CoV-2HumansImmunoassayNucleocapsid ProteinsSensitivity and SpecificityNucleocapsid Proteins

Identifiers

PMID35263100
PMCPMC8982495
OpenAlexW4221035439

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.