Evidence map›Paper›PMID 35630157›Full record

ArticleMicromachines2022

Reversible Thermo-Responsive Valve for Microfluidic Paper-Based Analytical Devices.

Hiroki Toda, Wataru Iwasaki, Nobutomo Morita, Taisei Motomura, Kenshin Takemura, Masaya Nagano, Yoshitaka Nakanishi, Yuta Nakashima

Open access · goldAbstract read
In one paragraph

Article in Micromachines, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 31% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
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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

8 authors at 3 institutions in 1 country.

Hiroki TodaGraduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan.
Wataru IwasakiSensing System Research Center, National Institute of Advanced Industrial Science and Technology, Saga 841-0052, Japan.ORCID 0000-0001-8336-0172
Nobutomo MoritaSensing System Research Center, National Institute of Advanced Industrial Science and Technology, Saga 841-0052, Japan.ORCID 0000-0002-5075-3209
Taisei MotomuraSensing System Research Center, National Institute of Advanced Industrial Science and Technology, Saga 841-0052, Japan.
Kenshin TakemuraSensing System Research Center, National Institute of Advanced Industrial Science and Technology, Saga 841-0052, Japan.ORCID 0000-0002-7892-8488
Masaya NaganoGraduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan.
Yoshitaka NakanishiFaculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan.ORCID 0000-0002-7975-3595
Yuta NakashimaFaculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan.ORCID 0000-0003-3151-4963
National Institute of Advanced Industrial Science and Technology · JPKumamoto Industrial Research Institute · JPKumamoto University · JP

Funding

Japan Society for the Promotion of Science KAKENHI Grant #20H02123
6 · The paper itself

Abstract

Fluid control on a paper channel is necessary for analysis with multiple reagents, such as enzyme-linked immunosorbent assay (ELISA) in microfluidic paper-based analytical devices (µPADs). In this study, a thermo-responsive valve was fabricated by polymerizing N-isopropylacrylamide on a PVDF porous membrane by plasma-induced graft polymerization. The polymerized membrane was observed by scanning electron microscopy (SEM), and it was confirmed that more pores were closed at temperatures below 32 °C and more pores were opened at temperatures above 32 °C. Valve permeability tests confirmed that the proposed polymerized membrane was impermeable to water and proteins at temperatures below 32 °C and permeable to water at temperatures above 32 °C. The valve could also be reversibly and repeatedly opened and closed by changing the temperature near 32 °C. These results suggest that plasma-induced graft polymerization may be used to produce thermo-responsive valves that can be opened and closed without subsequent loss of performance. These results indicate that the thermo-responsive valve fabricated by plasma-induced graft polymerization could potentially be applied to ELISA with µPADs.

Indexed as

microfluidic paper-based analytical devicesplasma-induced graft polymerizationpoly(N-isopropylacrylamide)thermo-responsive polymervalve

Identifiers

PMID35630157
PMCPMC9145873
OpenAlexW4225156913

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.