Evidence map›Paper›PMID 30906647›Full record

ArticleNature biomedical engineering2018

A portable device for nucleic acid quantification powered by sunlight, a flame or electricity.

Ryan Snodgrass, Andrea Gardner, Aggrey Semeere, Varun Lingaiah Kopparthy, Jens Duru, Toby Maurer, Jeffrey Martin, Ethel Cesarman, David Erickson

Abstract read
In one paragraph

Article in Nature biomedical engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing 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

41 citing papers in PubMed.

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  17. Engineering Innovative Interfaces for Point-of-Care Diagnostics.Current opinion in colloid & interface science · 2023
    Review
  18. Article
  19. Article
  20. Article
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

9 authors.

Ryan SnodgrassSibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA.ORCID http://orcid.org/0000-0003-0938-0356
Andrea GardnerDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.ORCID http://orcid.org/0000-0001-5572-1647
Aggrey SemeereInfectious Diseases Institute, Kampala, Uganda.
Varun Lingaiah KopparthySibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA.ORCID http://orcid.org/0000-0002-2948-0576
Jens DuruSibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA.
Toby MaurerDepartment of Dermatology, University of California, San Francisco, CA, USA.
Jeffrey MartinDepartment of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA. martin@psg.ucsf.edu.ORCID http://orcid.org/0000-0002-9773-3256
Ethel CesarmanDepartment of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA. ecesarm@med.cornell.edu.ORCID http://orcid.org/0000-0003-3303-6299
David EricksonSibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA. de54@cornell.edu.ORCID http://orcid.org/0000-0002-1624-9711

Funding

Virology CoreP30AI027763 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI STEVEN Grant DEEKS · 1988 to 2026
$93.6M
Why do Patients Develop KSU54CA190153 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KAMBUGU, ANDREW DDUNGU, MARTIN, JEFFREY N · 2014 to 2019
$3.6M
Early Stage Diagnosis of Kaposi's Sarcoma in Limited Resource Settings using KS-DetectUH3CA202723 · NCI · CORNELL UNIVERSITY · PI ERICKSON, DAVID CARL, MARTIN, JEFFREY N · 2018 to 2021
$3.2M
Early Stage Diagnosis of Kaposi's Sarcoma in Limited Resource Settings using KS-DetectUH2CA202723 · NCI · CORNELL UNIVERSITY · PI ERICKSON, DAVID CARL, MARTIN, JEFFREY N · 2016 to 2017
$999k
NCI NIH HHS U54 CA190153NCI NIH HHS UH2 CA202723NCI NIH HHS UH3 CA202723NIAID NIH HHS P30 AI027763
6 · The paper itself

Abstract

A decentralized approach to diagnostics can decrease the time to treatment of infectious diseases in resource-limited settings. Yet most modern diagnostic tools require stable electricity and are not portable. Here, we describe a portable device for isothermal nucleic-acid quantification that can operate with power from electricity, sunlight or a flame, and that can store heat from intermittent energy sources, for operation when electrical power is not available or reliable. We deployed the device in two Ugandan health clinics, where it successfully operated through multiple power outages, with equivalent performance when powered via sunlight or electricity. A direct comparison between the portable device and commercial qPCR (quantitative polymerase chain reaction) machines for samples from 71 Ugandan patients (29 of which were tested in Uganda) for the presence of Kaposi's sarcoma-associated herpesvirus DNA showed 94% agreement, with the four discordant samples having the lowest concentration of the herpesvirus DNA. The device's flexibility in power supply provides a needed solution for on-field diagnostics.

Identifiers

PMID30906647
PMCPMC6425734

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.