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https://www.readbyqxmd.com/read/28926723/porous-wo3-graphene-polyester-textile-electrode-materials-with-enhanced-electrochemical-performance-for-flexible-solid-state-supercapacitors
#1
Li-Na Jin, Ping Liu, Chun Jin, Jia-Nan Zhang, Shao-Wei Bian
In this work, a flexible and porous WO3/grapheme/polyester (WO3/G/PT) textile electrode was successfully prepared by in situ growing WO3 on the fiber surface inside G/PT composite fabrics. The unique electrode structure facilitates to enhance the energy storage performance because the 3D conductive network constructed by the G/PT increase the electron transportation rate, nanotructured WO3 exposed enhanced electrochemically active surface area and the hierarchically porous structure improved the electrolyte ion diffusion rate...
September 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28858652/mno2-nanotubes-assembled-on-conductive-graphene-polyester-composite-fabric-as-a-three-dimensional-porous-textile-electrode-for-flexible-electrochemical-capacitors
#2
Chun Jin, Li-Na Jin, Mei-Xia Guo, Ping Liu, Jia-Nan Zhang, Shao-Wei Bian
A three-dimensional (3D) electrode material was successfully synthesized through a facile ZnO-assisted hydrothermal process in which vertical MnO2 nanotube arrays were in situ grown on the conductive graphene/polyester composite fabric. The morphology and structure of MnO2 nanotubes/graphene/polyester textile electrode were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The 3D electrode structure facilitates to achieve the maximum number of active sites for the pesudocapacitance redox reaction, fast electrolyte ion transportation and short ion diffusion path...
August 16, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28853279/transforming-commercial-textiles-and-threads-into-sewable-and-weavable-electric-heaters
#3
Lushuai Zhang, Morgan Baima, Trisha L Andrew
We describe a process to transform commercial textiles and threads into electric heaters that can be cut/sewn or woven to fashion lightweight fabric heaters for local climate control and personal thermal management. Off-the-shelf fabrics are coated with a 1.5 μm thick film of a conducting polymer, poly(3,4-ethylenedioxythiophene), using an improved reactive vapor deposition method. Changes in the hand feel, weight, and breathability of the textiles after the coating process are imperceptible. The resulting fabric electrodes possess competitively low sheet resistances-44 Ω/□ measured for coated bast fiber textiles and 61 Ω/□ measured for coated cotton textiles-and act as low-power-consuming Joule heating elements...
September 5, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28840587/study-design-and-rationale-for-biomedical-shirt-based-electrocardiography-monitoring-in-relevant-clinical-situations-ecg-shirt-study
#4
Paweł Balsam, Piotr Lodziński, Agata Tymińska, Krzysztof Ozierański, Łukasz Januszkiewicz, Renata Główczyńska, Katarzyna Wesołowska, Michał Peller, Radosław Pietrzak, Tomasz Książczyk, Sonia Borodzicz, Łukasz Kołtowski, Mariusz Borkowski, Bożena Werner, Grzegorz Opolski, Marcin Grabowski
BACKGROUND: Today, the main challenge for researchers is to develop new technologies which may help to improve the diagnoses of cardiovascular disease (CVD), thereby reducing healthcare costs and improving the quality of life for patients. This study aims to show the utility of biomedical shirt-based electrocardiography (ECG) monitoring of patients with CVD in different clinical situations using the Nuubo® ECG (nECG) system. METHODS: An investigator-initiated, multicentre, prospective observational study was carried out in a cardiology (adult and paediatric) and cardiac rehabilitation wards ...
August 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28436408/design-of-a-smart-ecg-garment-based-on-conductive-textile-electrode-and-flexible-printed-circuit-board
#5
Zhipeng Cai, Kan Luo, Chengyu Liu, Jianqing Li
A smart electrocardiogram (ECG) garment system was designed for continuous, non-invasive and comfortable ECG monitoring, which mainly consists of four components: Conductive textile electrode, garment, flexible printed circuit board (FPCB)-based ECG processing module and android application program. Conductive textile electrode and FPCB-based ECG processing module (6.8 g, 55 mm × 53 mm × 5 mm) are identified as two key techniques to improve the system's comfort and flexibility. Preliminary experimental results verified that the textile electrodes with circle shape, 40 mm size in diameter, and 5 mm thickness sponge are best suited for the long-term ECG monitoring application...
August 9, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28420158/intelligent-medical-garments-with-graphene-functionalized-smart-cloth-ecg-sensors
#6
Murat Kaya Yapici, Tamador Elboshra Alkhidir
Biopotential signals are recorded mostly by using sticky, pre-gelled electrodes, which are not ideal for wearable, point-of-care monitoring where the usability of the personalized medical device depends critically on the level of comfort and wearability of the electrodes. We report a fully-wearable medical garment for mobile monitoring of cardiac biopotentials from the wrists or the neck with minimum restriction to regular clothing habits. The wearable prototype is based on elastic bands with graphene functionalized, textile electrodes and battery-powered, low-cost electronics for signal acquisition and wireless transmission...
April 16, 2017: Sensors
https://www.readbyqxmd.com/read/28338607/how-to-make-reliable-washable-and-wearable-textronic-devices
#7
Xuyuan Tao, Vladan Koncar, Tzu-Hao Huang, Chien-Lung Shen, Ya-Chi Ko, Gwo-Tsuen Jou
In this paper, the washability of wearable textronic (textile-electronic) devices has been studied. Two different approaches aiming at designing, producing, and testing robust washable and reliable smart textile systems are presented. The common point of the two approaches is the use of flexible conductive PCB in order to interface the miniaturized rigid (traditional) electronic devices to conductive threads and tracks within the textile flexible fabric and to connect them to antenna, textile electrodes, sensors, actuators, etc...
March 24, 2017: Sensors
https://www.readbyqxmd.com/read/28335276/flexible-textile-based-organic-transistors-using-graphene-ag-nanoparticle-electrode
#8
Youn Kim, Yeon Ju Kwon, Kang Eun Lee, Youngseok Oh, Moon-Kwang Um, Dong Gi Seong, Jea Uk Lee
Highly flexible and electrically-conductive multifunctional textiles are desirable for use in wearable electronic applications. In this study, we fabricated multifunctional textile composites by vacuum filtration and wet-transfer of graphene oxide films on a flexible polyethylene terephthalate (PET) textile in association with embedding Ag nanoparticles (AgNPs) to improve the electrical conductivity. A flexible organic transistor can be developed by direct transfer of a dielectric/semiconducting double layer on the graphene/AgNP textile composite, where the textile composite was used as both flexible substrate and conductive gate electrode...
August 16, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28269638/intarsia-sensorized-band-and-textrodes-for-real-time-myoelectric-pattern-recognition
#9
Shannon Brown, Max Ortiz-Catalan, Joel Petersson, Kristian Rodby, Fernando Seoane
Surface Electromyography (sEMG) has applications in prosthetics, diagnostics and neuromuscular rehabilitation. Self-adhesive Ag/AgCl are the electrodes preferentially used to capture sEMG in short-term studies, however their long-term application is limited. In this study we designed and evaluated a fully integrated smart textile band with electrical connecting tracks knitted with intarsia techniques and knitted textile electrodes. Real-time myoelectric pattern recognition for motor volition and signal-to-noise ratio (SNR) were used to compare its sensing performance versus the conventional Ag-AgCl electrodes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269062/comparing-wearable-devices-with-wet-and-textile-electrodes-for-activity-recognition
#10
Namita Lokare, Laura Gonzalez, Edgar Lobaton
This paper explores the idea of identifying activities from muscle activation which is captured by wearable ECG recording devices that use wet and textile electrodes. Most of the devices available today filter out the high frequency components to retain only the signal related to an ECG. We explain how the high frequency components that correspond to muscle activation can be extracted from the recorded signal and can be used to identify activities. We notice that is possible to obtain good performance for both the wet and dry electrodes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227896/intarsia-sensorized-band-and-textrodes-for-real-time-myoelectric-pattern-recognition
#11
Shannon Brown, Max Ortiz-Catalan, Joel Petersson, Kristian Rodby, Fernando Seoane, Shannon Brown, Max Ortiz-Catalan, Joel Petersson, Kristian Rodby, Fernando Seoane, Max Ortiz-Catalan, Fernando Seoane, Kristian Rodby, Shannon Brown, Joel Petersson
Surface Electromyography (sEMG) has applications in prosthetics, diagnostics and neuromuscular rehabilitation. Self-adhesive Ag/AgCl are the electrodes preferentially used to capture sEMG in short-term studies, however their long-term application is limited. In this study we designed and evaluated a fully integrated smart textile band with electrical connecting tracks knitted with intarsia techniques and knitted textile electrodes. Real-time myoelectric pattern recognition for motor volition and signal-to-noise ratio (SNR) were used to compare its sensing performance versus the conventional Ag-AgCl electrodes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227279/comparing-wearable-devices-with-wet-and-textile-electrodes-for-activity-recognition
#12
Namita Lokare, Laura Gonzalez, Edgar Lobaton, Namita Lokare, Laura Gonzalez, Edgar Lobaton
This paper explores the idea of identifying activities from muscle activation which is captured by wearable ECG recording devices that use wet and textile electrodes. Most of the devices available today filter out the high frequency components to retain only the signal related to an ECG. We explain how the high frequency components that correspond to muscle activation can be extracted from the recorded signal and can be used to identify activities. We notice that is possible to obtain good performance for both the wet and dry electrodes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/27743384/a-low-power-and-miniaturized-electrocardiograph-data-collection-system-with-smart-textile-electrodes-for-monitoring-of-cardiac-function
#13
Ming Dai, Xueliang Xiao, Xin Chen, Haoming Lin, Wanqing Wu, Siping Chen
With the increasing aging population as well as health concerns, chronic heart disease has become the focus of public attention. A comfortable, low-powered, and wearable electrocardiogram (ECG) system for continuously monitoring the elderly's ECG signals over several hours is important for preventing cardiovascular diseases. Traditional ECG monitoring apparatus is often inconvenient to carry, has many electrodes to attach to the chest, and has a high-power consumption. There is also a challenge to design an electrocardiograph that satisfies requirements such as comfort, confinement, and compactness...
December 2016: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/27516245/fabrication-of-a-flexible-and-conductive-lyocell-fabric-decorated-with-graphene-nanosheets-as-a-stable-electrode-material
#14
Naveed Mengal, Iftikhar Ali Sahito, Alvira Ayoub Arbab, Kyung Chul Sun, Muhammad Bilal Qadir, Anam Ali Memon, Sung Hoon Jeong
Textile electrodes are highly desirable for wearable electronics as they offer light-weight, flexibility, cost effectiveness and ease of fabrication. Here, we propose the use of lyocell fabric as a flexible textile electrode because of its inherently super hydrophilic characteristics and increased moisture uptake. A highly concentrated colloidal solution of graphene oxide nanosheets (GONs) was coated on to lyocell fabric and was then reduced in to graphene nanosheets (GNs) using facile chemical reduction method...
November 5, 2016: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27289808/contact-impedances-of-textile-electrodes-for-electrical-impedance-tomography
#15
A D Waldmann, K H Wodack, A März, A Ukere, C Trepte, S H Böhm, D A Reuter
No abstract text is available yet for this article.
December 2015: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/27242014/cutaneous-recording-and-stimulation-of-muscles-using-organic-electronic-textiles
#16
Maria Papaiordanidou, Seiichi Takamatsu, Shahab Rezaei-Mazinani, Thomas Lonjaret, Alain Martin, Esma Ismailova
Electronic textiles are an emerging field providing novel and non-intrusive solutions for healthcare. Conducting polymer-coated textiles enable a new generation of fully organic surface electrodes for electrophysiological evaluations. Textile electrodes are able to assess high quality muscular monitoring and to perform transcutaneous electrical stimulation.
August 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27156174/fabrication-of-polyaniline-graphene-polyester-textile-electrode-materials-for-flexible-supercapacitors-with-high-capacitance-and-cycling-stability
#17
Fu Shao, Shao-Wei Bian, Quan Zhu, Mei-Xia Guo, Si Liu, Yi-Hang Peng
Vertical polyaniline (PANI) nanowire arrays on graphene-sheet-coated polyester cloth (RGO/PETC) were fabricated by the in situ chemical polymerization of aniline. The 3D conductive network that was formed by the graphene sheets greatly enhanced the conductivity of PANI/RGO/PETC and improved its mechanical stability. PANI nanowire arrays increased the active surface area of PANI, whilst the hierarchically porous structure of the PANI/RGO/PETC electrode facilitated the diffusion of the electrolyte ions. Electrochemical measurements showed that the composite electrode exhibited a maximum specific capacitance of 1293 F g(-1) at a current density of 1 A g(-1) ...
July 5, 2016: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/26737534/preliminary-study-of-a-new-home-healthcare-monitoring-to-prevent-the-recurrence-of-stroke
#18
Toshiyo Tamura, Masaki Sekine, Zunyi Tang, Masaki Yoshida, Yoshinori Takeuchi, Masaharu Imai
We tested a new model that involves monitoring physiological parameters and the use of a rehabilitation training system to improve team-based healthcare. The system consisted of unobtrusive monitoring, a highly efficient database, and interventions by health professionals. This report discusses the core technologies, especially those involved in monitoring, which have been developed. The unobtrusive blood pressure (BP) estimation system, electrocardiogram (ECG), Kinect-based rehabilitation training system, and web-based care system, including its database, were designed and tested separately...
August 2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/26737443/a-chair-for-cuffless-real-time-estimation-of-systolic-blood-pressure-based-on-pulse-transit-time
#19
Zunyi Tang, Masaki Sekine, Toshiyo Tamura, Masaki Yoshida, Wenxi Chen
This study presents an unobtrusive cuffless blood pressure (BP) monitoring system for estimating beat-by-beat systolic blood pressure (SBP) in real-time based on pulse transit time (PTT). The system mainly includes an electrocardiograph with three conductive textile electrodes, a pulse monitor with a LED and a photodetector, a control circuit with a Bluetooth module, and a battery, all of which are mounted on a common armchair to measure ECG and photoplethysmography (PPG) signals from users during sitting on the armchair...
2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/26737123/simple-method-for-adaptive-filtering-of-motion-artifacts-in-e-textile-wearable-ecg-sensors
#20
Tamador Alkhidir, Andrzej Sluzek, Murat Kaya Yapici
In this paper, we have developed a simple method for adaptive out-filtering of the motion artifact from the electrocardiogram (ECG) obtained by using conductive textile electrodes. The textile electrodes were placed on the left and the right wrist to measure ECG through lead-1 configuration. The motion artifact was induced by simple hand movements. The reference signal for adaptive filtering was obtained by placing additional electrodes at one hand to capture the motion of the hand. The adaptive filtering was compared to independent component analysis (ICA) algorithm...
August 2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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