Flexible and Stretchable Dry Active Electrodes With PDMS and Silver Flakes for Bio-Potentials Sensing Systems

Jiang, Yizhou; Liu, Huan; Chen, Lin; Zhang, Yuanyuan; He, Zhihui; Zhang, Wei; Zhao, Jun; Lu, Danzhu; He, Jie; Zhu, Hongda; Gong, Yi; Zheng, Lirong; Wang, Yuanyuan; Li, Zhuo; Qin, Yajie

doi:10.1109/jsen.2021.3061949

Cited by 27 publications

(15 citation statements)

References 38 publications

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“…The electrode exhibited a higher SNR ratio in the EP signal measurement experiment than the traditional Ag/AgCl electrode during ECG measurement. The sensitivity to motion artifacts was low and the electrode also showed good signal quality in EEG and EMG signal measurement [143].…”

Section: Manufacturing Based On 2d Pesmentioning

confidence: 99%

“…Their experimental test showed that the EII and ECG signal quality of the electrode have a 97% correlation with a traditional Ag/AgCl wet electrode [142]. Jiang et al prepared a flexible electrode based on Ag flake/PDMS electrically conductive composite (ECC) for multiple EP signal detection [143]. The electrode uses the bar coating method to coat the ECC material on the substrate and other components.…”

Section: Manufacturing Based On 2d Pesmentioning

confidence: 99%

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High-Adhesive Flexible Electrodes and Their Manufacture: A Review

Xiao

Wang

et al. 2021

Micromachines

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All human activity is associated with the generation of electrical signals. These signals are collectively referred to as electrical physiology (EP) signals (e.g., electrocardiogram, electroencephalogram, electromyography, electrooculography, etc.), which can be recorded by electrodes. EP electrodes are not only widely used in the study of primary diseases and clinical practice, but also have potential applications in wearable electronics, human–computer interface, and intelligent robots. Various technologies are required to achieve such goals. Among these technologies, adhesion and stretchable electrode technology is a key component for rapid development of high-performance sensors. In last decade, remarkable efforts have been made in the development of flexible and high-adhesive EP recording systems and preparation technologies. Regarding these advancements, this review outlines the design strategies and related materials for flexible and adhesive EP electrodes, and briefly summarizes their related manufacturing techniques.

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Section: Manufacturing Based On 2d Pesmentioning

confidence: 99%

Section: Manufacturing Based On 2d Pesmentioning

confidence: 99%

High-Adhesive Flexible Electrodes and Their Manufacture: A Review

Xiao

Wang

et al. 2021

Micromachines

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“…To overcome the limitations of conventional gel-based electrodes, improved hydrogels [2,[5][6][7] and semi-dry [8][9][10][11] and dry electrodes [3,[12][13][14] have been proposed and increasingly used in recent years. Semi-dry electrodes have been suggested as a compromise between conventional gel-based and completely dry electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…On bare skin, dry electrodes normally exhibit higher contact impedances than the conventional gel-based wet electrodes, but when combined with state-of-the-art electronics, following a short settling time, the electrodes can record bioelectric signals with signal-to-noise ratios similar to the gel electrodes. Moreover, the use of soft, flexible substrate materials fosters the adaptivity of the electrode to the body shape, increasing the long-term wearing comfort and improving the electrode-skin contact, especially during body motion [3,[12][13][14]. Dry electrodes are thus user-friendly solutions offering improved applicability without the need for hydrogels or other types of wet electrolytes [3,[12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the use of soft, flexible substrate materials fosters the adaptivity of the electrode to the body shape, increasing the long-term wearing comfort and improving the electrode-skin contact, especially during body motion [3,[12][13][14]. Dry electrodes are thus user-friendly solutions offering improved applicability without the need for hydrogels or other types of wet electrolytes [3,[12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Me-Doped Ti–Me Intermetallic Thin Films Used for Dry Biopotential Electrodes: A Comparative Case Study

Lopes

Fiedler

Rodrigues

et al. 2021

Sensors

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In a new era for digital health, dry electrodes for biopotential measurement enable the monitoring of essential vital functions outside of specialized healthcare centers. In this paper, a new type of nanostructured titanium-based thin film is proposed, revealing improved biopotential sensing performance and overcoming several of the limitations of conventional gel-based electrodes such as reusability, durability, biocompatibility, and comfort. The thin films were deposited on stainless steel (SS) discs and polyurethane (PU) substrates to be used as dry electrodes, for non-invasive monitoring of body surface biopotentials. Four different Ti–Me (Me = Al, Cu, Ag, or Au) metallic binary systems were prepared by magnetron sputtering. The morphology of the resulting Ti–Me systems was found to be dependent on the chemical composition of the films, specifically on the type and amount of Me. The existence of crystalline intermetallic phases or glassy amorphous structures also revealed a strong influence on the morphological features developed by the different systems. The electrodes were tested in an in-vivo study on 20 volunteers during sports activity, allowing study of the application-specific characteristics of the dry electrodes, based on Ti–Me intermetallic thin films, and evaluation of the impact of the electrode–skin impedance on biopotential sensing. The electrode–skin impedance results support the reusability and the high degree of reliability of the Ti–Me dry electrodes. The Ti–Al films revealed the least performance as biopotential electrodes, while the Ti–Au system provided excellent results very close to the Ag/AgCl reference electrodes.

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Nature‐Skin‐Derived e‐Skin as Versatile “Wound Therapy‐Health Monitoring” Bioelectronic Skin‐Scaffolds: Skin to Bio‐e‐Skin

Liu

Cui

Wang

et al. 2023

Adv Healthcare Materials

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Electronic skins (e‐skins) have the potential to turn into breakthroughs in biomedical applications. Herein, a novel acellular dermal matrix (ADM)‐based bioelectronic skin (e‐ADM) is used to fabricate versatile “wound therapy‐health monitoring” tissue‐nanoengineered skin scaffolds via a facile “one‐pot” bio‐compositing strategy to incorporate the conductive carbon nanotubes and self‐assembled micro‐copper oxide microspheres with a cicada‐wing‐like rough surface and nanocone microstructure. The e‐ADM exhibits robust tensile strength (22 MPa), flexibility, biodegradability, electroactivity, and antibacterial properties. Interestingly, e‐ADM exhibits the pH‐responsive ability for intelligent command between sterilization and wound repair . Additionally, e‐ADM enables accurate real‐time monitoring of human activities, providing a novel flexible e‐skin sensor to record injury and motions. In vitro and in vivo experiments show that with electrical stimulation, e‐ADM could prominently facilitate cell growth and proliferation and further promote full‐thickness skin wound healing, providing a comprehensive therapeutic strategy for smart sensing and tissue repair, guiding the development of high‐performance “wound therapy‐health monitoring” bioelectronic skin‐scaffolds.

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Flexible and Stretchable Dry Active Electrodes With PDMS and Silver Flakes for Bio-Potentials Sensing Systems

Cited by 27 publications

References 38 publications

High-Adhesive Flexible Electrodes and Their Manufacture: A Review

High-Adhesive Flexible Electrodes and Their Manufacture: A Review

Me-Doped Ti–Me Intermetallic Thin Films Used for Dry Biopotential Electrodes: A Comparative Case Study

Nature‐Skin‐Derived e‐Skin as Versatile “Wound Therapy‐Health Monitoring” Bioelectronic Skin‐Scaffolds: Skin to Bio‐e‐Skin

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