Evidence map›Paper›PMID 22399016›Full record

ArticleLab on a chip2012

Digital LAMP in a sample self-digitization (SD) chip.

Alexander Gansen, Alison M Herrick, Ivan K Dimov, Luke P Lee, Daniel T Chiu

Open access · greenAbstract read
In one paragraph

Article in Lab on a chip, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
8.9field-weighted citation impact, top 2% 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

68 citing papers in PubMed, 185 citations in OpenAlex.

  1. Article
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  4. Article
  5. Development and Validation of the MAST ISOPLEXInternational journal of molecular sciences · 2024
    Article
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8 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Alexander GansenDepartment of Chemistry, University of Washington, Seattle, USA.
Alison M Herrick
Ivan K Dimov
Luke P Lee
Daniel T Chiu
University of California, Berkeley · USUniversity of Washington · USSeattle University · US

Funding

Pilot ProjectsU54CA151459 · NCI · STANFORD UNIVERSITY · PI GAMBHIR, SANJIV S · 2010 to 2014
$12.6M
Sample self digitization for digital and real-time PCRR21GM103459 · NIGMS · UNIVERSITY OF WASHINGTON · PI CHIU, DANIEL T · 2012 to 2013
$378k
Sample self digitization for digital and real-time PCRR21RR032399 · NCRR · UNIVERSITY OF WASHINGTON · PI CHIU, DANIEL T · 2011 to 2011
$193k
NCI NIH HHS U54CA151459NCRR NIH HHS R21 RR032399NCRR NIH HHS R21RR032399NIGMS NIH HHS R21 GM103459
6 · The paper itself

Abstract

This paper describes the realization of digital loop-mediated DNA amplification (dLAMP) in a sample self-digitization (SD) chip. Digital DNA amplification has become an attractive technique to quantify absolute concentrations of DNA in a sample. While digital polymerase chain reaction is still the most widespread implementation, its use in resource-limited settings is impeded by the need for thermal cycling and robust temperature control. In such situations, isothermal protocols that can amplify DNA or RNA without thermal cycling are of great interest. Here, we accomplished the successful amplification of single DNA molecules in a stationary droplet array using isothermal digital loop-mediated DNA amplification. Unlike most (if not all) existing methods for sample discretization, our design allows for automated, loss-less digitization of sample volumes on-chip. We demonstrated accurate quantification of relative and absolute DNA concentrations with sample volumes of less than 2 μl. We assessed the homogeneity of droplet size during sample self-digitization in our device, and verified that the size variation was small enough such that straightforward counting of LAMP-active droplets sufficed for data analysis. We anticipate that the simplicity and robustness of our SD chip make it attractive as an inexpensive and easy-to-operate device for DNA amplification, for example in point-of-care settings.

Indexed as

AutomationDNANucleic Acid Amplification TechniquesRNATemperatureDNARNA

Identifiers

PMID22399016
PMCPMC3383853
OpenAlexW2109386543

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.