Evidence map›Paper›PMID 40506633›Full record

ArticleMikrochimica acta2025

Rapid detection of SARS-CoV-2 antigen based on IgG colloidal gold immunochromatographic strip.

Han Wu, Hai Li, Jiayi Shu, Changyan Yang, Jianglong Wang, Haitao Li, Min Shao, Hefeng Zhou

Abstract read
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In one paragraph

Article in Mikrochimica acta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

8 authors.

Han Wu *School of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China.
Hai Li *School of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China.
Jiayi ShuSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China.
Changyan YangSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China.
Jianglong WangSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China.
Haitao LiSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China.
Min ShaoSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China. shaomin@zmuzh.edu.cn.
Hefeng ZhouSchool of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, 519000, China. zhf@zmu.edu.cn.

Funding

Guizhou Provincial Science and Technology Department,China QKHZC [2020]4Y219Guizhou Provincial Science and Technology Department,China QKHZC [2023]General259
6 · The paper itself

Abstract

In December 2019, Wuhan, China, reported the first cases of pneumonia caused by a previously unknown coronavirus, subsequently designated SARS-CoV-2. This pathogen precipitated a global pandemic of coronavirus disease 2019 (COVID-19). The virus primarily transmits via aerosols, direct contact, and contaminated surfaces. Its high infectivity and rapid transmission have posed severe public health challenges on a global scale, emphasizing the essential need for precise and swift diagnostic techniques to effectively track and curb its transmission. To address this need, we designed a highly efficient approach, namely a colloidal gold immunochromatographic strip (CGICS) based on an IgG-mediated immunoassay, for the specific capture of the SARS-CoV-2 nucleocapsid (N) antigen. Evaluation of the assay's specificity with a panel of common respiratory viral pathogens revealed that the CGICS specifically recognized SARS-CoV-2, with no cross-reactivity observed against non-target viruses. In addition, limit-of-detection (LOD) assessments indicated that the minimum detectable concentration was 2 ng/mL, and agreement analysis experiments showed a concordance rate of 98%, demonstrating high specificity and sensitivity. The resulting CGICS was capable of detecting SARS-CoV-2 antigen within 5-15 min. This study provides a rapid diagnostic approach for early SARS-CoV-2 infection, offering significant implications for effective disease prevention, control, and clinical diagnosis.

Indexed as

Antigens, ViralChromatography, AffinityCOVID-19COVID-19 Serological TestingGold ColloidImmunoglobulin GSARS-CoV-2Antibodies, ViralCoronavirus Nucleocapsid ProteinsHumansImmunoassayLimit of DetectionReagent StripsAntibodies, ViralAntigens, ViralCoronavirus Nucleocapsid ProteinsGold ColloidImmunoglobulin GReagent StripsColloidal goldELISAMonoclonal antibodiesNucleocapsid proteinSARS-COV-2

Identifiers

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Registered trials

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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.