Construction of porous polymer films on rGO coated cotton fabric for self‐powered pressure sensors in human motion monitoring

Zhang, Shichen; Xu, Jiangtao; Sun, Yue

doi:10.1007/s10570-021-03729-6

Cited by 11 publications

(5 citation statements)

References 54 publications

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“…After the EPY is cross-linked with KH-560, KH-EPY showed intense characteristic peaks of KH-560. A strong broad peak ranging from 1100–1000 cm –1 , Si–O vibration located at 1190 cm ‑1 , − and a peak attributing to C–O–C (epoxide group) located at 910 cm –1 were detected in KH-EPY . The variation observed from the spectra reveals that KH-560 has been successfully grafted on the surface of EPY.…”

Section: Results and Discussionmentioning

confidence: 96%

(3-Mercaptopropyl)triethoxysilane-Modified Reduced Graphene Oxide-Modified Polyurethane Yarn Enhanced by Epoxy/Thiol Reactions for Strain Sensors

Zhang

Sun

2021

ACS Appl. Mater. Interfaces

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In the current work, a method was proposed to fabricate strain-sensing yarns via epoxy/thiol reactions by a dip-coating method. Reduced graphene oxide (rGO) was modified with (3-mercaptopropyl)triethoxysilane, and polyurethane yarn was cross-linked with 3-glycidoxypropyltrimethoxysilane. The existence of thiol in modified rGO and epoxy in the cross-linked polyurethane yarn contributed to the formation of the covalent bond between the elastic substrate and the conductive layer, resulting in good adhesion between the substrate and the conductive layer, as well as excellent electromechanical performance. The outstanding strain-sensing performance make the prepared yarn show excellent potential in practical applications when monitoring human motions, which makes it a promising candidate for wearable sensing devices.

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Section: Results and Discussionmentioning

confidence: 96%

(3-Mercaptopropyl)triethoxysilane-Modified Reduced Graphene Oxide-Modified Polyurethane Yarn Enhanced by Epoxy/Thiol Reactions for Strain Sensors

Zhang

Sun

2021

ACS Appl. Mater. Interfaces

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“…Among them, TPU is widely used in various industries such as defense, medical, and food because of its high strength, high ductility, and favorable processing performance. The commonly used conductive fillers include metal nanomaterials (AgNWs, CuNWs), − carbon-based materials (CNT, CB, GO, MXene), − and conductive polymers (PPy, PANI, PEDOT:PSS) . In addition, liquid metals (gallium, rubidium, etc.…”

Section: Resultsmentioning

confidence: 99%

Highly Stretchable and Multimodal MXene/CNTs/TPU Flexible Resistive Sensor with Hierarchical Structure Inspired by Annual Ring for Hand Rehabilitation

Liu,

Luo,

Kuang

et al. 2024

ACS Sens.

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With the advent of the intelligent age and people's higher pursuit of health, wearable sensors with functions of health monitoring and assisting physical rehabilitation are increasingly favored by consumers. Wherein, highly stretchable flexible sensors show promising potential, but the unstable conductivity under large strains remains a great challenge to develop flexible wearable sensors with both a wide work range and strain insensitivity. Based on this, a MXene/CNTs/TPU flexible resistive sensor (MCT/ FRS) with hierarchical structure inspired by the annual ring was proposed. Benefiting from the bioinspired structure with tightly warped inner layers and deformable spring structure outside, the MCT/FRSs enable stable sensing over a wide working range of up to 700% under the stretching mode, as well as superior durability (7500 cycles). It also possessed linear and adjustable piezoresistive properties under the compression mode. Finally, the sensor was not only successfully employed for monitoring various human movements but also was utilized to assist hand rehabilitation in patients with Guillain-Barrésyndrome in both stretching and compression modes. This work provides promising and attractive solutions for flexible wearable devices and intelligent medical care.

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“…During the preparation, the flexible fabric knitted with elastic yarn is generally selected as the base to composite with conductive material, or the conductive yarn is directly knitted into the sensor. The conductive materials commonly used in this field include metal nanomaterials (AgNWs and Cu Np), [48][49][50][51][52][53] carbon-based materials (CNT, CB, GO, and MXene), [54][55][56][57][58][59][60][61][62][63][64] and conductive polymers (PPy, PAN, and PETDOT: PSS). [65][66][67][68][69] In addition, semiconductors (ZnO and ZnS), [70,71] liquid metals [72] (gallium, rubidium, etc.…”

Section: Kfss Fabrication Technologymentioning

confidence: 99%

A Review on Knitted Flexible Strain Sensors for Human Activity Monitoring

Liu,

Liang,

Wan

et al. 2023

Adv Materials Technologies

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The recent surge in using wearable personalized devices has made it increasingly important to flexible textile‐based sensors that can be worn comfortably and can sense various body strains. Among them, the knit‐based flexible strain sensors (KFSS) show growing promise for human activity monitoring applications due to its processing flexibility, low cost, wearing comfortability, large strain performance, and high elastic recovery rate. Herein, five sensing mechanisms of knitted flexible strain sensors containing contact resistance, length resistance, tunneling effect, micro‐crack propagation, and disconnection mechanism are summarized, which can be used on different human activity strain conditions, e.g., physiological activities and limb activities. The main fabrication approaches, including knitting techniques, post‐processing techniques, embroidery, and sewing techniques are discussed. Six crucial parameters with corresponding calculation formulas for evaluating sensing performance and review specific applications of KFSS for human limb activity and physiological activity monitoring in healthcare, motion tracking, safety protection, and human–machine interaction are also described. Finally, the tough challenges and prospects of KFSS with the aim of providing meaningful guidance and direction for future research are critically analyzed.

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Construction of porous polymer films on rGO coated cotton fabric for self‐powered pressure sensors in human motion monitoring

Cited by 11 publications

References 54 publications

(3-Mercaptopropyl)triethoxysilane-Modified Reduced Graphene Oxide-Modified Polyurethane Yarn Enhanced by Epoxy/Thiol Reactions for Strain Sensors

(3-Mercaptopropyl)triethoxysilane-Modified Reduced Graphene Oxide-Modified Polyurethane Yarn Enhanced by Epoxy/Thiol Reactions for Strain Sensors

Highly Stretchable and Multimodal MXene/CNTs/TPU Flexible Resistive Sensor with Hierarchical Structure Inspired by Annual Ring for Hand Rehabilitation

A Review on Knitted Flexible Strain Sensors for Human Activity Monitoring

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