Highly sensitive textile-based strain sensors using poly(3,4-ethylenedioxythiophene):polystyrene sulfonate/silver nanowire-coated nylon threads with poly-<scp>l</scp>-lysine surface modification

Eom, Jonghwa; Heo, Jae Sang; Kim, Minho; Lee, Jun Ho; Park, Sung Kyu; Kim, Yong‐Hoon

doi:10.1039/c7ra10722f

Cited by 52 publications

(29 citation statements)

References 32 publications

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“…This study especially showed that a fiber pattern design by the sewing process can control sensitivity and sensing range of the sensors [ 33 ]. Thus, the weaving or sewing process appears to be easy-access to textile-based sensor applications with easy and simple integration with fabrics and yarns [ 118 , 119 ]. Similar to the fiber pattern design, Maziz et al reported that textile architectures with woven and knitted structures can control or improve output force and strain, which indicates that the electrical performances of textile-based devices can be optimized by applying different textile architectures [ 120 ].…”

Section: Textile-based Wearable Sensorsmentioning

confidence: 99%

“…( c ) Optical images of zigzag- and linear-type PEDOT/PS fiber embedded fabrics by sewing method (reproduced with permission [ 33 ] copyright 2017, American Chemical Society). ( d ) Woven sensor fabric fabricated by weaving process (reproduced with permission [ 118 ] copyright 2017, Royal Society of Chemistry). ( e ) PU/PEDOT:PSS fibers co-knitted with a commercial Spandex yarn using knitting method (reproduced with permission [ 121 ] copyright 2015, American Chemical Society).…”

Section: Figurementioning

confidence: 99%

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Challenges in Design and Fabrication of Flexible/Stretchable Carbon- and Textile-Based Wearable Sensors for Health Monitoring: A Critical Review

Heo

Hossain

Kim

2020

Sensors

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To demonstrate the wearable flexible/stretchable health-monitoring sensor, it is necessary to develop advanced functional materials and fabrication technologies. Among the various developed materials and fabrication processes for wearable sensors, carbon-based materials and textile-based configurations are considered as promising approaches due to their outstanding characteristics such as high conductivity, lightweight, high mechanical properties, wearability, and biocompatibility. Despite these advantages, in order to realize practical wearable applications, electrical and mechanical performances such as sensitivity, stability, and long-term use are still not satisfied. Accordingly, in this review, we describe recent advances in process technologies to fabricate advanced carbon-based materials and textile-based sensors, followed by their applications such as human activity and electrophysiological sensors. Furthermore, we discuss the remaining challenges for both carbon- and textile-based wearable sensors and then suggest effective strategies to realize the wearable sensors in health monitoring.

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Section: Textile-based Wearable Sensorsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Challenges in Design and Fabrication of Flexible/Stretchable Carbon- and Textile-Based Wearable Sensors for Health Monitoring: A Critical Review

Heo

Hossain

Kim

2020

Sensors

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“…There are several conductive polymer-based strain sensors reported in the recent past [19,20]. Among them the polymer PEDOT:PSS has gained attention owing to good electrical and structural properties and several strain sensors have been developed using PEDOT:PSS conductive polymer [21,22]. The developed strain sensors are mostly fabricated by printing polymers between two electrodes.…”

Section: Advances Over Previous Workmentioning

confidence: 99%

Microchannel based Flexible Dynamic Strain Sensor

Bhattacharjee

Soni

Dahiya

2019

2019 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)

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“…For e-textiles, the formation of flexible conductive patterns that have low initial resistance and minimal resistance increase due to tensile deformation is a crucial challenge. Prior studies have primarily used two types of formation methods to form conductive patterns on a textile, i.e., weaving/knitting/sewing of conductive yarns, such as silver-coated yarns [12][13][14][15], and printing conductive inks, such as stretchable silver inks [16][17][18]. From the perspective of simplicity of process and compatibility with the conventional electronics manufacturing process, direct printing of conductive ink on a textile has several advantages.…”

Section: Introductionmentioning

confidence: 99%

Resistance Reduction of Conductive Patterns Printed on Textile by Curing Shrinkage of Passivation Layers

2020

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Directly printing conductive ink on textiles is simple and compatible with the conventional electronics manufacturing process. However, the conductive patterns thus formed often show high initial resistance and significant resistance increase due to tensile deformation. Achieving conductive patterns with low initial resistance and reduced deformation-induced resistance increase is a significant challenge in the field of electronic textiles (e-textiles). In this study, the passivation layers printed on conductive patterns, which are necessary for practical use, were examined as a possible solution. Specifically, the reduction of the initial resistance and deformation-induced resistance increase, caused by the curing shrinkage of passivation layers, were theoretically and experimentally investigated. In the theoretical analysis, to clarify the mechanism of the reduction of deformation-induced resistance increase, crack propagation in conductive patterns was analyzed. In the experiments, conductive patterns with and without shrinking passivation layers (polydimethylsiloxane) cured at temperatures of 20–120 °C were prepared, and the initial resistances and resistance increases due to cyclic tensile and washing in each case were compared. As a result, the initial resistance was reduced further by the formation of shrinking passivation layers cured at higher temperatures, and reduced to 0.45 times when the curing temperature was 120 °C. The cyclic tensile and washing tests confirmed a 0.48 and a 0.011 times reduction of resistance change rate after the 100th elongation cycle (10% in elongation rate) and the 10th washing cycle, respectively, by comparing the samples with and without shrinking passivation layers cured at 120 °C.

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Highly sensitive textile-based strain sensors using poly(3,4-ethylenedioxythiophene):polystyrene sulfonate/silver nanowire-coated nylon threads with poly-l-lysine surface modification

Abstract: A highly sensitive textile-based strain sensor using a poly(3,4-ethylenedioxythiophene):polystyrene sulfonate/silver nanowire -coated nylon thread is demonstrated.

Cited by 52 publications

References 32 publications

Challenges in Design and Fabrication of Flexible/Stretchable Carbon- and Textile-Based Wearable Sensors for Health Monitoring: A Critical Review

Challenges in Design and Fabrication of Flexible/Stretchable Carbon- and Textile-Based Wearable Sensors for Health Monitoring: A Critical Review

Microchannel based Flexible Dynamic Strain Sensor

Resistance Reduction of Conductive Patterns Printed on Textile by Curing Shrinkage of Passivation Layers

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