Fabrication of Silver Electrical Circuits on Textile Substrates by Reactive Inkjet Printing

Xiao, Yuan; Li, Qian; Zhang, Chengkun; Zhang, Wei; Yun, Weibo; Yang, Leipeng

doi:10.1109/jsen.2022.3166936

Cited by 8 publications

(3 citation statements)

References 54 publications

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“…Compared to bulk silver, the printed conductive layer demonstrated a greater conductivity. Different stretch orientations on the knitted textiles were used to assess the resistance variance [110].…”

Section: Drop/dye/dip Coatingmentioning

confidence: 99%

Recent Advances and Challenges in Textile Electrodes for Wearable Biopotential Signal Monitoring: A Comprehensive Review

2023

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The technology of wearable medical equipment has advanced to the point where it is now possible to monitor the electrocardiogram and electromyogram comfortably at home. The transition from wet Ag/AgCl electrodes to various types of gel-free dry electrodes has made it possible to continuously and accurately monitor the biopotential signals. Fabrics or textiles, which were once meant to protect the human body, have undergone significant development and are now employed as intelligent textile materials for healthcare monitoring. The conductive textile electrodes provide the benefit of being breathable and comfortable. In recent years, there has been a significant advancement in the fabrication of wearable conductive textile electrodes for monitoring biopotential signals. This review paper provides a comprehensive overview of the advances in wearable conductive textile electrodes for biopotential signal monitoring. The paper covers various aspects of the technology, including the electrode design, various manufacturing techniques utilised to fabricate wearable smart fabrics, and performance characteristics. The advantages and limitations of various types of textile electrodes are discussed, and key challenges and future research directions are identified. This will allow them to be used to their fullest potential for signal gathering during physical activities such as running, swimming, and other exercises while being linked into wireless portable health monitoring systems.

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Section: Drop/dye/dip Coatingmentioning

confidence: 99%

Recent Advances and Challenges in Textile Electrodes for Wearable Biopotential Signal Monitoring: A Comprehensive Review

2023

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“…Therefore, in-textile fabrication and monolithic integration of electronic devices and circuits using commonly adopted conductive materials (e.g., tin and copper) are in high demand (41)(42)(43)(44). Polymer-assisted metal deposition (PAMD), a low-cost and highthroughput technique, has become a practical chemical process for fabricating conductive textiles due to its superior stability and conductivity (45)(46)(47)(48)(49)(50).…”

Section: Introductionmentioning

confidence: 99%

A monolithically integrated in-textile wristband for wireless epidermal biosensing

Ma,

Wang,

Huang

et al. 2023

Sci. Adv.

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Textile bioelectronics that allow comfortable epidermal contact hold great promise in noninvasive biosensing. However, their applications are limited mainly because of the large intrinsic electrical resistance and low compatibility for electronics integration. We report an integrated wristband that consists of multifunctional modules in a single piece of textile to realize wireless epidermal biosensing. The in-textile metallic patterning and reliable interconnect encapsulation contribute to the excellent electrical conductivity, mechanical robustness, and waterproofness that are competitive with conventional flexible devices. Moreover, the well-maintained porous textile architectures deliver air permeability of 79 mm s −1 and moisture permeability of 270 g m −2 day −1 , which are more than one order of magnitude higher than medical tapes, thus ensuring superior wearing comfort. The integrated in-textile wristband performed continuous sweat potassium monitoring in the range of 0.3 to 40 mM with long-term stability, demonstrating its great potential for wearable fitness monitoring and point-of-care testing.

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“…[26] This approach has a significant advantage over particle-based colloid inks because the small spherical Ag particles in colloidal inks often clog the dispensing nozzle of the inkjet printer. In contrast, the aqueous solvents of the particle-free silver ink do not restrict the nozzle size and thus enable very small amounts of the solution to be deposited onto different types of substrates, including flexible materials such as paper, [39,40] individual fibers, [41] textiles, [42,43] and plastics. [44,45] Particle-free silver inks have been explored by numerous researchers who investigated chemical reaction design, fabrication of conductive electrode patterns, and a wide variety of applications.…”

Section: Introductionmentioning

confidence: 99%

Morphology of Silver Particles and Films Arising from Particle‐Free Silver Ink Droplet Evaporation

Zhang,

Yang,

Knopf

2023

Adv Materials Inter

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The evaporation of particle‐free silver ink droplets on heated substrates directly impacts the morphology of the resultant silver particles and electrically conductive inkjet‐printed films. In this work, COMSOL Multiphysics simulations of the droplet evaporation process are used to help explain the fluidic processes responsible for the experimental observations. The results show that the silver particle morphology depends on its location within the evaporating droplet where large particles (3 to 5 µm) accumulate at the center and smaller ones (1 to 2 µm) in the area beyond the central region. The smallest particles (≈500 nm) are near the contact line. Without the fluoro‐surfactant FS‐31, an inner ring with 3 µm particles also appears within the evaporating droplet. The large particles at the central region originate from the fluid near the droplet's apex due to the accumulation of polyacrylamide in the concentrated ethylene glycol solvent near the flow‐abundant apex. Furthermore, the capillary flow along the fluid–air interface transports silver ions and particles throughout the droplet, causing the larger particles to fall onto the substrate at the central vortex, forming the inner ring. The simulations also demonstrate that the evaporating droplet heterogeneously accumulates ethylene glycol in a sandhill formation at the bottom center.

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Fabrication of Silver Electrical Circuits on Textile Substrates by Reactive Inkjet Printing

Cited by 8 publications

References 54 publications

Recent Advances and Challenges in Textile Electrodes for Wearable Biopotential Signal Monitoring: A Comprehensive Review

Recent Advances and Challenges in Textile Electrodes for Wearable Biopotential Signal Monitoring: A Comprehensive Review

A monolithically integrated in-textile wristband for wireless epidermal biosensing

Morphology of Silver Particles and Films Arising from Particle‐Free Silver Ink Droplet Evaporation

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