Evidence map›Paper›PMID 34945432›Full record

ArticleMicromachines2021

Microfluidic Chip with Two-Stage Isothermal Amplification Method for Highly Sensitive Parallel Detection of SARS-CoV-2 and Measles Virus.

Qin Huang, Xiaohui Shan, Ranran Cao, Xiangyu Jin, Xue Lin, Qiurong He, Yulei Zhu, Rongxin Fu, Wenli Du, Wenqi Lv and 2 more

Abstract read
In one paragraph

Article in Micromachines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

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  14. Recent progress of microfluidic chips in immunoassay.Frontiers in bioengineering and biotechnology · 2022
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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.

Qin HuangDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Xiaohui ShanDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Ranran CaoSichuan Center for Disease Control and Prevention, Chengdu 610041, China.
Xiangyu JinDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Xue LinDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Qiurong HeWest China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
Yulei ZhuWest China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
Rongxin FuDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Wenli DuDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Wenqi LvDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
Ying XiaWest China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China.
Guoliang HuangDepartment of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.

Funding

Sichuan Science and Technology Program 2021YFQ0060the Beijing Lab Foundation 20201550018the National Key Research and Development Program of China 2018YFA0704004the National Natural Science Foundation of China 61927819, 81827808, 20170012, 62105177the Tsinghua Autonomous Research Foundation 20194180031, 20201080058Tsinghua University Spring Breeze Fund 20201080510
6 · The paper itself

Abstract

A two-stage isothermal amplification method, which consists of a first-stage basic recombinase polymerase amplification (RPA) and a second-stage fluorescence loop-mediated isothermal amplification (LAMP), as well as a microfluidic-chip-based portable system, were developed in this study; these enabled parallel detection of multiplex targets in real time in around one hour, with high sensitivity and specificity, without cross-contamination. The consumption of the sample and the reagent was 2.1 μL and 10.6 μL per reaction for RPA and LAMP, respectively. The lowest detection limit (LOD) was about 10 copies. The clinical amplification of about 40 nasopharyngeal swab samples, containing 17 SARS-CoV-2 (severe acute respiratory syndrome coronavirus) and 23 measles viruses (MV), were parallel tested by using the microfluidic chip. Both clinical specificity and sensitivity were 100% for MV, and the clinical specificity and sensitivity were 94.12% and 95.83% for SARS-CoV-2, respectively. This two-stage isothermal amplification method based on the microfluidic chip format offers a convenient, clinically parallel molecular diagnostic method, which can identify different nucleic acid samples simultaneously and in a timely manner, and with a low cost of the reaction reagent. It is especially suitable for resource-limited areas and point-of-care testing (POCT).

Indexed as

measles virusmicrofluidic chipparallel molecular diagnosticSARS-CoV-2two-stage isothermal amplification

Identifiers

PMID34945432
PMCPMC8705924

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.