A Bi‐Sheath Fiber Sensor for Giant Tensile and Torsional Displacements

Wang, Run; Jiang, Nan; Su, Jian; Yin, Qiang; Zhang, Yue; Liu, Zhong‐Sheng; Lin, Haibao; Moura, Felipe Arruda; Yuan, Ningyi; Roth, S.; Rome, Richard S.; Ovalle‐Robles, Raquel; Inoue, Kanzan; Yin, Shougen; Fang, Shaoli; Wang, Weichao; Ding, Jianning; Shi, Linqi; Baughman, Ray H.; Liu, Zunfeng

doi:10.1002/adfm.201702134

Cited by 110 publications

(108 citation statements)

References 68 publications

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“…They also developed a downsized sheath‐core conductive fiber strain sensor with high sensing range and sensing stability . With spray‐coating method, Baughman's group developed a bi‐sheath buckling structure on CNT sheets (NTS)@rubber@fiber and fabricated it into a resistive strain sensor with a significantly lar ge sensing range of up to ~600%, excellent linearity and stability . Zhong et al coated two cotton threads with carbon nanotubes (CNTs) and polytetrafluoroethylene (PTFE)/CNTs, respectively.…”

Section: Fabrication Of Textile‐based Strain Sensorsmentioning

confidence: 99%

Textile‐Based Strain Sensor for Human Motion Detection

Wang

Zhang

2019

Energy & Environ Materials

190

109

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Human motion analysis consists of real‐time monitoring and recording of human body's kinematics. It is very essential to track ambulatory and daily‐life human motion, which is crucial for many applications and disciplines. Electronic textiles (e‐textiles) afford a valid alternative to traditional solid‐state sensors due to their merits of low cost, lightweight, flexibility, and feasibility to fit various human bodies. In this mini‐review, textile‐based sensor platforms and human motion analysis are well discussed in Section 1. Second, theoretical principles of textile‐based strain sensors are introduced including resistive, capacitive, and piezoelectrical sensors. Section 3 focuses on various types of textile materials that are functionalized as sensing systems by intrinsic or extrinsic modifications. Section 4 summaries various types of e‐textile‐based strain sensors for human motion analysis. The final two sections mainly present perspectives and challenges, and conclusions, respectively.

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Section: Fabrication Of Textile‐based Strain Sensorsmentioning

confidence: 99%

Textile‐Based Strain Sensor for Human Motion Detection

Wang

Zhang

2019

Energy & Environ Materials

190

109

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“…Spiders have been regarded as the most sensitive animals to environmental vibrations due to their crack‐shaped vibration‐sensitive slit organ embedded in the exoskeleton . Inspired by the mechanosensory systems in spiders, researchers have established various crack‐shaped wearable pressure sensors, which benefit from the reversible crack connection . However, most crack‐shaped pressure sensors exhibit a limited monitoring range due to easily damaged conducting pathways, and their applications in real‐time detections of large‐strain deformations are inhibited.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Wearable Pressure Sensor with Bioinspired Microcrack and Interlocking for Full‐Range Human–Machine Interfacing

Guo

Zhong

et al. 2018

Small

178

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Flexible wearable pressure sensors have drawn tremendous interest for various applications in wearable healthcare monitoring, disease diagnostics, and human–machine interaction. However, the limited sensing range (<10%), low sensing sensitivity at small strains, limited mechanical stability at high strains, and complicated fabrication process restrict the extensive applications of these sensors for ultrasensitive full‐range healthcare monitoring. Herein, a flexible wearable pressure sensor is presented with a hierarchically microstructured framework combining microcrack and interlocking, bioinspired by the crack‐shaped mechanosensory systems of spiders and the wing‐locking sensing systems of beetles. The sensor exhibits wide full‐range healthcare monitoring under strain deformations of 0.2–80%, fast response/recovery time (22 ms/20 ms), high sensitivity, the ultrasensitive loading sensing of a feather (25 mg), the potential to predict the health of patients with early‐stage Parkinson's disease with the imitated static tremor, and excellent reproducibility over 10 000 cycles. Meanwhile, the sensor can be assembled as smart artificial electronic skins (E‐skins) for simultaneously mapping the pressure distribution and shape of touching sensing. Furthermore, it can be attached onto the legs of a smart robot and coupled to a wireless transmitter for wirelessly monitoring human‐motion interactivities.

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“…The skin‐like geometry and stretchability of the ISASE allow its comfortable adhesion to any wound site for therapy. Human skin shows different ranges of strain in various anatomic regions, e.g., 80% strain for knuckle, 60% strain for elbow, and 49% strain for knee . Therefore, large tensile strain is inevitable in the ISASE mounted on the joints to accommodate usual human motions.…”

Section: Resultsmentioning

confidence: 99%

Infrared Skin‐Like Active Stretchable Electronics Based on Organic–Inorganic Composite Structures for Promotion of Cutaneous Wound Healing

Zhang

Jiang

et al. 2019

Adv Materials Technologies

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Recent studies on flexible/stretchable medical electronics are almost all focusing on passive monitoring of physiological signs for medical diagnostics, but rare reports have been found on those for active therapeutic purposes. Here, a novel infrared skin‐like active stretchable electronics (ISASE) is introduced with the organic–inorganic composite design for promotion of cutaneous wound healing, which can be conformally mounted anywhere on the human body due to its excellent flexibility and stretchability. Comprehensive experiments, including the proliferation and migration of human skin fibroblasts and rat dermal fibroblasts in vitro, and various tests on wound healing of rats, show favorable effects of the ISASE on promoting the fibroblast migration and proliferation, reducing the inflammatory phase, stimulating the angiogenesis, and shorting the wound healing period. A typical ISASE significantly shortens the cure time for a wounded rat by at least two days compared with the normal treatment with 12 days cure. The mechanical tests confirm the validity of the ISASE when used in extreme large deformations (e.g., stretched by up to 80% strain), which enables the conformability with the human body. The present portable and wearable ISASE demonstrates great potential for cutaneous wound healing, which constitutes an important complement to the current applications in the healthcare field.

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A Bi‐Sheath Fiber Sensor for Giant Tensile and Torsional Displacements

Cited by 110 publications

References 68 publications

Textile‐Based Strain Sensor for Human Motion Detection

Textile‐Based Strain Sensor for Human Motion Detection

A Flexible Wearable Pressure Sensor with Bioinspired Microcrack and Interlocking for Full‐Range Human–Machine Interfacing

Infrared Skin‐Like Active Stretchable Electronics Based on Organic–Inorganic Composite Structures for Promotion of Cutaneous Wound Healing

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