Evidence map›Paper›PMID 34760159›Full record

ArticleChemical science2021

Filtering and continuously separating microplastics from water using electric field gradients formed electrochemically in the absence of buffer.

Jonathan R Thompson, Logan M Wilder, Richard M Crooks

Abstract read
In one paragraph

Article in Chemical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Review
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

3 authors.

Jonathan R ThompsonDepartment of Chemistry, Texas Materials Institute, The University of Texas at Austin 105 E. 24th St., Stop A5300 Austin Texas 78712-1224 USA crooks@cm.utexas.edu +1-512-475-8674.ORCID https://orcid.org/0000-0002-1207-1493
Logan M WilderDepartment of Chemistry, Texas Materials Institute, The University of Texas at Austin 105 E. 24th St., Stop A5300 Austin Texas 78712-1224 USA crooks@cm.utexas.edu +1-512-475-8674.ORCID https://orcid.org/0000-0002-0423-3149
Richard M CrooksDepartment of Chemistry, Texas Materials Institute, The University of Texas at Austin 105 E. 24th St., Stop A5300 Austin Texas 78712-1224 USA crooks@cm.utexas.edu +1-512-475-8674.ORCID https://orcid.org/0000-0001-5186-4878

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Here we use experiments and finite element simulations to investigate the electrokinetics within straight microchannels that contain a bipolar electrode and an unbuffered electrolyte solution. Our findings indicate that in the presence of a sufficiently high electric field, water electrolysis proceeds at the bipolar electrode and leads to variations in both solution conductivity and ionic current density along the length of the microchannel. The significance of this finding is twofold. First, the results indicate that both solution conductivity and ionic current density variations significantly contribute to yield sharp electric field gradients near the bipolar electrode poles. The key point is that ionic current density variations constitute a fundamentally new mechanism for forming electric field gradients in solution. Second, we show that the electric field gradients that form near the bipolar electrode poles in unbuffered solution are useful for continuously separating microplastics from water in a bifurcated microchannel. This result expands the potential scope of membrane-free separations using bipolar electrodes.

Identifiers

PMID34760159
PMCPMC8549819

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Registered trials

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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.