Flexible Capacitive Pressure Sensors with Ultrasonically Engineered Cu-Filled PDMS Dielectric Layers.

Xuelei Jia, Zhiwei Xu, Jiahao Huang, Yinlong Zhu, Shuang Xi, Junchao Zhang, Xu Wang

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it

0cells of the map it votes in

2citing 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

2 citing papers in PubMed.

Multimodal Hydrogel-Based Sensors for Sleep Respiratory Monitoring: Signal Sensing Mechanisms and Structural Design Strategies.Sensors (Basel, Switzerland) · 2026
Review
Hydrogel-Based Mechanical Sensors for Sleep Respiratory Monitoring: Recent Advances and Future Perspectives.Sensors (Basel, Switzerland) · 2026
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

7 authors.

Xuelei JiaCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.

Zhiwei XuCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.

Jiahao HuangCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.

Yinlong ZhuCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.ORCID 0000-0003-4574-3900

Shuang XiCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.ORCID 0000-0001-5018-1987

Junchao ZhangCollege of Aeronautics and Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.

Xu WangCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.ORCID 0000-0002-0680-6908

Funding

the Provincial Training Program of Innovation and Entrepreneurship for Undergraduates 202510298115Y

6 · The paper itself

Abstract

Flexible capacitive pressure sensors have garnered significant attention in wearable electronics and robotic tactile sensing due to their high flexibility and simple structure. However, non-uniform distribution of conductive fillers in composite dielectric layers often compromises dielectric stability and sensing performance. In this work, a Cu/PDMS composite dielectric layer was fabricated using ultrasonic-assisted homogenization to enhance Cu particle dispersion and suppress sedimentation. A theoretical model and finite element simulations were employed to investigate the effects of particle distribution on permittivity, capacitance, electric field, and current density. The results indicate that uniform Cu dispersion improves dielectric stability and mitigates local electric-field concentration. Compared with conventionally prepared sensors, the ultrasonically treated sensor demonstrated higher sensitivity, enhanced dielectric stability, and a broader working range. Specifically, the sensor achieved a sensitivity of 0.157 kPa

Indexed as

Cu/PDMS composite dielectricdielectric modulationflexible capacitive sensorparticle dispersionultrasonic processing

Identifiers

PMID42356709

DOI10.3390/s26123721

PMCPMC13306848

What Socratic 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 Socratic graph.