Conductive Polyester Fabrics with High Washability as Electrocardiogram Textile Electrodes

2022 ◽  
Author(s):  
Li Wang ◽  
Yile Pan ◽  
Duoduo He ◽  
Liying Qian ◽  
Xiuhua Cao ◽  
...  
Keyword(s):  
Polyester Fabrics ◽  
Textile Electrodes

Utilization of Vinyl Coated Polyester Fabrics for Architectural Applications

2000 ◽  
Vol 30 (1) ◽  
pp. 63-82 ◽  
Author(s):  
RICHARD SEAMAN ◽  
FRANK BRADENBURG
Keyword(s):  
Polyester Fabrics

Electrodermal Responses Through Textile Electrodes

2010 ◽  
Vol 14 (4) ◽  
pp. 81-88 ◽  
Author(s):  
Antonio Lanatà ◽  
Gaetano Valenza ◽  
E.Pasquale Scilingo
Keyword(s):  
Textile Electrodes ◽  
Electrodermal Responses

scholarly journals Textile Electrodes: Influence of Knitting Construction and Pressure on the Contact Impedance

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1578
Author(s):  
Luisa Euler ◽  
Li Guo ◽  
Nils-Krister Persson
Keyword(s):  
Smooth Surface ◽  
Research Field ◽  
Uneven Surface ◽  
Contact Impedance ◽  
Dry Electrodes ◽  
Textile Electrodes ◽  
Human Forearm ◽  
Wet Condition ◽  
Electrode Contact ◽  
Influencing Parameters

Textile electrodes, also called textrodes, for biosignal monitoring as well as electrostimulation are central for the emerging research field of smart textiles. However, so far, only the general suitability of textrodes for those areas was investigated, while the influencing parameters on the contact impedance related to the electrode construction and external factors remain rather unknown. Therefore, in this work, six different knitted electrodes, applied both wet and dry, were compared regarding the influence of specific knitting construction parameters on the three-electrode contact impedance measured on a human forearm. Additionally, the influence of applying pressure was investigated in a two-electrode setup using a water-based agar dummy. Further, simulation of an equivalent circuit was used for quantitative evaluation. Indications were found that the preferred electrode construction to achieve the lowest contact impedance includes a square shaped electrode, knitted with a high yarn density and, in the case of dry electrodes, an uneven surface topography consisting of loops, while in wet condition a smooth surface is favorable. Wet electrodes are showing a greatly reduced contact impedance and are therefore to be preferred over dry ones; however, opportunities are seen for improving the electrode performance of dry electrodes by applying pressure to the system, thereby avoiding disadvantages of wet electrodes with fluid administration, drying-out of the electrolyte, and discomfort arising from a “wet feeling”.

scholarly journals Exploitation of seawater for cotton and polyester fabrics colouration

Heliyon ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. e07059
Author(s):  
Md. Rezaul Karim ◽  
Tarikul Islam ◽  
Md. Reazuddin Repon ◽  
Abdullah Al Hamim ◽  
Muhammad Abdur Rashid ◽  
...  
Keyword(s):  
Polyester Fabrics

scholarly journals Dedicated Algorithm for Unobtrusive Fetal Heart Rate Monitoring Using Multiple Dry Electrodes

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4298
Author(s):  
Alessandra Galli ◽  
Elisabetta Peri ◽  
Yijing Zhang ◽  
Rik Vullings ◽  
Myrthe van der Ven ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Processing System ◽  
Motion Artifacts ◽  
Accurate Estimation ◽  
Fetal Heart Rate Monitoring ◽  
Dry Electrodes ◽  
Textile Electrodes ◽  
Dry Electrode

Multi-channel measurements from the maternal abdomen acquired by means of dry electrodes can be employed to promote long-term monitoring of fetal heart rate (fHR). The signals acquired with this type of electrode have a lower signal-to-noise ratio and different artifacts compared to signals acquired with conventional wet electrodes. Therefore, starting from the benchmark algorithm with the best performance for fHR estimation proposed by Varanini et al., we propose a new method specifically designed to remove artifacts typical of dry-electrode recordings. To test the algorithm, experimental textile electrodes were employed that produce artifacts typical of dry and capacitive electrodes. The proposed solution is based on a hybrid (hardware and software) pre-processing step designed specifically to remove the disturbing component typical of signals acquired with these electrodes (triboelectricity artifacts and amplitude modulations). The following main processing steps consist of the removal of the maternal ECG by blind source separation, the enhancement of the fetal ECG and identification of the fetal QRS complexes. Main processing is designed to be robust to the high-amplitude motion artifacts that corrupt the acquisition. The obtained denoising system was compared with the benchmark algorithm both on semi-simulated and on real data. The performance, quantified by means of sensitivity, F1-score and root-mean-square error metrics, outperforms the performance obtained with the original method available in the literature. This result proves that the design of a dedicated processing system based on the signal characteristics is necessary for reliable and accurate estimation of the fHR using dry, textile electrodes.

Tissue Reaction to Polypyrrole-Coated Polyester Fabrics: An in Vivo Study in Rats

2002 ◽  
Vol 8 (4) ◽  
pp. 635-647 ◽  
Author(s):  
Xiaoping Jiang ◽  
Yves Marois ◽  
Amidou Traoré ◽  
Dominic Tessier ◽  
Lê H. Dao ◽  
...  
Keyword(s):  
Tissue Reaction ◽  
In Vivo Study ◽  
Polyester Fabrics

Application of PU-sealing into Cu/Ni electroless plated polyester fabrics for e-textiles

2007 ◽  
Vol 8 (3) ◽  
pp. 330-334 ◽  
Author(s):  
Jayoung Cho ◽  
Jihye Moon ◽  
Keesam Jeong ◽  
Gilsoo Cho
Keyword(s):  
Polyester Fabrics

Gauging performance of biosynthesized silver nanoparticles loaded polypropylene nonwoven based textile electrodes for 3-lead health monitoring electro cardiogram on analogous system

2021 ◽  
pp. 152808372110256
Author(s):  
Tasnim N Shaikh ◽  
SB Chaudhari ◽  
BH Patel ◽  
Megha Patel
Keyword(s):  
Silver Nanoparticles ◽  
Health Monitoring ◽  
Nonwoven Fabric ◽  
Motion Artifacts ◽  
Ocimum Sanctum ◽  
Testing Time ◽  
Electrode Impedance ◽  
Air Voids ◽  
Textile Electrodes ◽  
Analogous System

This work reports the engineering of textile electrodes, considered safe for humans even if worn next to skin for a longer time. Obliging this phenomenon conductive Silver nanoparticles (AgNPs) were biosynthesized from Silver Sulphate (Ag2SO4) and medicinal values enriched Ocimum Sanctum (Tulsi)leaves extract. These conductive Silver nanoparticles were loaded by spray technique on polypropylene nonwoven fabric having inbuilt antifungal characteristics, to reduce its resistivity (10Ω) for the fabrication of textile electrodes. The adequate skin-electrode impedance values were observed for the fabricated textile electrodes, viz; 1.44 MΩ–1.83 MΩ and 1.01 MΩ–1.18 MΩ, in the dry and wet state respectively. The 3-lead health monitoring electrocardiograms (ECG) were obtained on the Analogous system with the textile electrodes; dry and wet state as well as gel electrodes. The cardiograms were also taken at a smaller triangle than usual, only for the high resistance textile electrodes. The wet electrodes have executed considerably better clarity of PQR wavelets than reference gel electrodes ECG plots, and their performance was found consistent when tested after six months’ time leap. However, higher motion artifacts caused in the case of dry electrodes have resulted in distorted PQR wavelets and the tracing became worsen with increased testing time leap. This was mainly due to the encapsulation of conductive AgNPs in the air voids of the fabric, increased resistivity. The cardiogram quality has not shown peculiar benefit for a higher heart pumping pressure at the smaller triangle in either of the cases.

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