Evidence map›Paper›PMID 34597143›Full record

ArticleScience advances2021

Capillary flow control in lateral flow assays via delaminating timers.

Dohwan Lee, Tevhide Ozkaya-Ahmadov, Chia-Heng Chu, Mert Boya, Ruxiu Liu, A Fatih Sarioglu

Abstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

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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

6 authors.

Dohwan LeeSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.ORCID 0000-0001-6002-1557
Tevhide Ozkaya-AhmadovSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Chia-Heng ChuSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.ORCID 0000-0002-0676-404X
Mert BoyaSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Ruxiu LiuSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.ORCID 0000-0002-8094-7987
A Fatih SariogluSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.ORCID 0000-0001-7191-4342

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lateral flow assays (LFAs) use capillary flow of liquids for simple detection of analytes. While useful for spontaneously wicking samples, the capillary flow inherently limits performing complex reactions that require timely application of multiple solutions. Here, we introduce a technique to control capillary flow on paper by imprinting roadblocks on the flow path with water-insoluble ink and using the gradual formation of a void between a wetted paper and a sheath polymer tape to create timers. Timers are drawn at strategic nodes to hold the capillary flow for a desired period and thereby enable multiple liquids to be introduced into multistep chemical reactions following a programmed sequence. Using our technique, we developed (i) an LFA with built-in signal amplification to detect human chorionic gonadotropin with an order of magnitude higher sensitivity than the conventional assay and (ii) a device to extract DNA from bodily fluids without relying on laboratory instruments.

Identifiers

PMID34597143
PMCPMC10938491

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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.