Evidence map›Paper›PMID 26260693›Full record

ArticleBiomedical microdevices2015

Static self-directed sample dispensing into a series of reaction wells on a microfluidic card for parallel genetic detection of microbial pathogens.

Robert D Stedtfeld, Yen-Cheng Liu, Tiffany M Stedtfeld, Tanja Kostic, Maggie Kronlein, Onnop Srivannavit, Walid T Khalife, James M Tiedje, Erdogan Gulari, Mary Hughes and 2 more

Abstract readEvaluation Study
In one paragraph

Article in Biomedical microdevices, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. 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

12 authors.

Robert D StedtfeldCivil and Environmental Engineering, Michigan State University, East Lansing, MI, 48824, USA.
Yen-Cheng Liu
Tiffany M Stedtfeld
Tanja Kostic
Maggie Kronlein
Onnop Srivannavit
Walid T Khalife
James M Tiedje
Erdogan Gulari
Mary Hughes
Brett Etchebarne
Syed A Hashsham

Funding

VOLATILE ORGANIC CONTAMINANTS--QUANTIFYING THEIR MOVEMENT IN THE UNSATURATED ZONEP42ES004911 · NIEHS · MICHIGAN STATE UNIVERSITY · PI Jamie J Bernard · 1989 to 2026
$64.9M
Austrian Science Fund FWF J 3151NIEHS NIH HHS 2 P42 ES004911-22A1NIEHS NIH HHS P42 ES004911
6 · The paper itself

Abstract

A microfluidic card is described for simultaneous and rapid genetic detection of multiple microbial pathogens. The hydrophobic surface of native acrylic and a novel microfluidic mechanism termed "airlock" were used to dispense sample into a series of 64 reaction wells without the use of valves, external pumping peripherals, multiple layers, or vacuum assistance. This airlock mechanism was tested with dilutions of whole human blood, saliva, and urine, along with mock samples of varying viscosities and surface tensions. Samples spiked with genomic DNA (gDNA) or crude lysates from clinical bacterial isolates were tested with loop mediated isothermal amplification assays (LAMP) designed to target virulence and antibiotic resistance genes. Reactions were monitored in real time using the Gene-Z, which is a portable smartphone-driven system. Samples loaded correctly into the microfluidic card in 99.3% of instances. Amplification results confirmed no carryover of pre-dispensed primer between wells during sample loading, and no observable diffusion between adjacent wells during the 60 to 90 min isothermal reaction. Sensitivity was comparable between LAMP reactions tested within the microfluidic card and in conventional vials. Tests demonstrate that the airlock card works with various sample types, manufacturing techniques, and can potentially be used in many point-of-care diagnostics applications.

Indexed as

Lab-On-A-Chip DevicesBacteriaDNA, BacterialEquipment DesignEquipment Failure AnalysisGenetic TestingMicroarray AnalysisMiniaturizationNucleic Acid Amplification TechniquesReproducibility of ResultsSensitivity and SpecificityDNA, Bacterial

Identifiers

PMID26260693
PMCPMC4531140

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.