A Flow-Through Microfluidic Relative Permittivity Sensor.

Yaxiang Zeng, Remco Sanders, Remco Wiegerink, Joost Lötters

Abstract read

In one paragraph

Article in Micromachines, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing 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

1 citing paper in PubMed.

Research on Pneumatic Proportional Pressure Valve Based on Silicon Microfluidic Chip with V-Shaped Electrothermal Microactuator.Micromachines · 2025
Article

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.

Yaxiang ZengIntegrated Devices and Systems group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.

Remco SandersIntegrated Devices and Systems group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.

Remco WiegerinkIntegrated Devices and Systems group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.ORCID 0000-0001-5571-739X

Joost LöttersIntegrated Devices and Systems group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.

Funding

Nederlandse Organisatie voor Wetenschappelijk Onderzoek 15026

6 · The paper itself

Abstract

In this paper, we present the design, simulation, fabrication and characterization of a microfluidic relative permittivity sensor in which the fluid flows through an interdigitated electrode structure. Sensor fabrication is based on an silicon on insulator (SOI) wafer where the fluidic inlet and outlet are etched through the handle layer and the interdigitated electrodes are made in the device layer. An impedance analyzer was used to measure the impedance between the interdigitated electrodes for various non-conducting fluids with a relative permittivity ranging from 1 to 41. The sensor shows good linearity over this range of relative permittivity and can be integrated with other microfluidic sensors in a multiparameter chip.

Indexed as

capacitance sensorinterdigitated electrodesrelative permittivity sensor

Identifiers

PMID32245134

DOI10.3390/mi11030325

PMCPMC7142741

What OpenQuestion holds

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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.