Evidence map›Paper›PMID 35562332›Full record

ArticleNature communications2022

On the origins of conductive pulse sensing inside a nanopore.

Lauren S Lastra, Y M Nuwan D Y Bandara, Michelle Nguyen, Nasim Farajpour, Kevin J Freedman

Abstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

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  9. Detecting DNA translocation through a nanopore using a van der Waals heterojunction diode.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

5 authors.

Lauren S LastraDepartment of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA.
Y M Nuwan D Y BandaraDepartment of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA.ORCID 0000-0003-1921-8467
Michelle NguyenDepartment of Biology, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA.
Nasim FarajpourDepartment of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA.
Kevin J FreedmanDepartment of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA, 92521, USA. kfreedman@engr.ucr.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nanopore sensing is nearly synonymous with resistive pulse sensing due to the characteristic occlusion of ions during pore occupancy, particularly at high salt concentrations. Contrarily, conductive pulses are observed under low salt conditions wherein electroosmotic flow is significant. Most literature reports counterions as the dominant mechanism of conductive events (a molecule-centric theory). However, the counterion theory does not fit well with conductive events occurring via net neutral-charged protein translocation, prompting further investigation into translocation mechanics. Herein, we demonstrate theory and experiments underpinning the translocation mechanism (i.e., electroosmosis or electrophoresis), pulse direction (i.e., conductive or resistive) and shape (e.g., monophasic or biphasic) through fine control of chemical, physical, and electronic parameters. Results from these studies predict strong electroosmosis plays a role in driving DNA events and generating conductive events due to polarization effects (i.e., a pore-centric theory).

Indexed as

NanoporesElectric ConductivityElectroosmosisElectrophoresisIonsIons

Identifiers

PMID35562332
PMCPMC9106702

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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.