Evidence map›Paper›PMID 26009988›Full record

ArticleLab on a chip2015

Multiplexed paper analytical device for quantification of metals using distance-based detection.

David M Cate, Scott D Noblitt, John Volckens, Charles S Henry

Abstract read
In one paragraph

Article in Lab on a chip, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
13.8field-weighted citation impact, top 1% 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

40 citing papers in PubMed, 243 citations in OpenAlex.

  1. CRISPR-Programmable Nanoparticle Transport in Salt-Gated Porous Media for Visual DNA Detection.Chemical engineering journal (Lausanne, Switzerland : 1996) · 2026
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  6. Skin-Interfaced Bifluidic Paper-Based Device for Quantitative Sweat Analysis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  7. Review
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  10. Accuracy improvementRSC advances · 2023
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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

4 authors at 1 institution in 1 country.

David M CateSchool of Biomedical Engineering, Colorado State University, Fort Collins, Colorado 80523, USA. John.Volckens@colostate.edu Chuck.Henry@colostate.edu.
Scott D Noblitt
John Volckens
Charles S Henry
Colorado State University · US

Funding

Low-Cost Versatile Sampler for Personal PM Exposure by MicroenvironmentR21ES024719 · NIEHS · COLORADO STATE UNIVERSITY · PI HENRY, CHARLES S, VOLCKENS, JOHN · 2015 to 2016
$442k
Development of a Microfluidic Paper Analytical Device (uPAD) for Airborne MetalsR21OH010050 · OH · COLORADO STATE UNIVERSITY · PI HENRY, CHARLES S, VAN DYKE, MICHAEL · 2011 to 2012
$397k
NIEHS NIH HHS R21 ES024719NIOSH CDC HHS R21 OH010050NIOSH CDC HHS R21OH010050
6 · The paper itself

Abstract

Exposure to metal-containing aerosols has been linked with adverse health outcomes for almost every organ in the human body. Commercially available techniques for quantifying particulate metals are time-intensive, laborious, and expensive; often sample analysis exceeds $100. We report a simple technique, based upon a distance-based detection motif, for quantifying metal concentrations of Ni, Cu, and Fe in airborne particulate matter using microfluidic paper-based analytical devices. Paper substrates are used to create sensors that are self-contained, self-timing, and require only a drop of sample for operation. Unlike other colorimetric approaches in paper microfluidics that rely on optical instrumentation for analysis, with distance-based detection, analyte is quantified visually based on the distance of a colorimetric reaction, similar to reading temperature on a thermometer. To demonstrate the effectiveness of this approach, Ni, Cu, and Fe were measured individually in single-channel devices; detection limits as low as 0.1, 0.1, and 0.05 μg were reported for Ni, Cu, and Fe. Multiplexed analysis of all three metals was achieved with detection limits of 1, 5, and 1 μg for Ni, Cu, and Fe. We also extended the dynamic range for multi-analyte detection by printing concentration gradients of colorimetric reagents using an off-the-shelf inkjet printer. Analyte selectivity was demonstrated for common interferences. To demonstrate utility of the method, Ni, Cu, and Fe were measured from samples of certified welding fume; levels measured with paper sensors matched known values determined gravimetrically.

Indexed as

ColorimetryPaperColoring AgentsCopperIronMicrofluidicsNickelColoring AgentsCopperIronNickel

Identifiers

PMID26009988
PMCPMC4470859
OpenAlexW1862108443

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.