A Stretchable Electronic Fabric Artificial Skin with Pressure‐, Lateral Strain‐, and Flexion‐Sensitive Properties

Jin, G.; Sun, Li; Zhang, Fu-Rui; Zhang, Ye; Shi, Lu‐An; Zhao, Hongbin; Zhu, Heguo; Jiang, Hai‐Long; Yu, Shu‐Hong

doi:10.1002/adma.201504239

Cited by 427 publications

(262 citation statements)

References 33 publications

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“…The most common methods for integrating conductive materials into soft polymer filaments include coating with metal or carbon 21, 25 , or with conductive composites of polymer with graphite, carbon, metal nanoparticles, or other conductive materials 13, 15, 23, 24, 26–29 . This can yield devices that are useful as strain (stretch) sensors, but that may not admit other functionalities (such as contact sensing, as demonstrated here).…”

Section: Introductionmentioning

confidence: 99%

Stretchable, Twisted Conductive Microtubules for Wearable Computing, Robotics, Electronics, and Healthcare

Nho

Visell

2017

Sci Rep

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Stretchable and flexible multifunctional electronic components, including sensors and actuators, have received increasing attention in robotics, electronics, wearable, and healthcare applications. Despite advances, it has remained challenging to design analogs of many electronic components to be highly stretchable, to be efficient to fabricate, and to provide control over electronic performance. Here, we describe highly elastic sensors and interconnects formed from thin, twisted conductive microtubules. These devices consist of twisted assemblies of thin, highly stretchable (>400%) elastomer tubules filled with liquid conductor (eutectic gallium indium, EGaIn), and fabricated using a simple roller coating process. As we demonstrate, these devices can operate as multimodal sensors for strain, rotation, contact force, or contact location. We also show that, through twisting, it is possible to control their mechanical performance and electronic sensitivity. In extensive experiments, we have evaluated the capabilities of these devices, and have prototyped an array of applications in several domains of stretchable and wearable electronics. These devices provide a novel, low cost solution for high performance stretchable electronics with broad applications in industry, healthcare, and consumer electronics, to emerging product categories of high potential economic and societal significance.

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Section: Introductionmentioning

confidence: 99%

Stretchable, Twisted Conductive Microtubules for Wearable Computing, Robotics, Electronics, and Healthcare

Nho

Visell

2017

Sci Rep

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“…Significant efforts in recent years have been made towards the development of the artificial skin (Brohem et al, ; Gholipourmalekabadi et al, ; Han et al, ; Lei & Wu, ; Wang, Chen, Jiang, & Shen, ), in order to mimic the properties of human skin. The artificial skin (Jia et al, ; Liu et al, ; Nachman & Franklin, ; Shimizu & Nonomura, ; Silvera‐Tawil, Rye, & Velonaki, ; Wang et al, ) has broad applications from cosmetics industry, biomedical engineering (Han, Hu, & Jiang, ; Kenry & Lim, ; Li et al, ; Nicoletti et al, ; Parvez et al, ; Yong‐Lae, Bor‐Rong, & Wood, ) and even to wearable electronic devices (Bao, ; Ge et al, ; Sultana et al, ; Wang, Ma, & Hao, ; Xu et al, ). To date, several types of bioengineered skin substitutes have been developed and widely used in the fields of cosmetic, drug‐delivery carriers (Bhowmick et al, ; Blanco, ; Gholipourmalekabadi et al, ; Ma et al, ), and wound dressing (Aoki et al, ; Fan, Yang, Yang, Peng, & Hu, ; Foubert et al, ; Gil, Panilaitis, Bellas, & Kaplan, ).…”

Section: Introductionmentioning

confidence: 99%

One‐component waterborne in vivo cross‐linkable polysiloxane coatings for artificial skin

Ailing

Zhou

2019

J Biomed Mater Res

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Polysiloxane‐based artificial skins are able to emulate the mechanical and barrier performance of human skin. However, they are usually fabricated in vitro, restricting their diverse applications on human body. Herein, we presented one‐component waterborne cross‐linkable polysiloxane coatings prepared from emulsified vinyl dimethicone, emulsified hydrogen dimethicone, and Karstedt catalyst capsules that were first synthesized by solvent evaporation method. The coating had good storage stability and meanwhile could form an elastic film quickly through merging of silicone oil droplets and subsequent hydrosilylation reaction. It was found that the mass ratio of vinyl dimethicone emulsion/hydrogen dimethicone emulsion (V/H), and the dosage of Karstedt catalyst capsules (K/(V + H)) were critical to the curing time, morphology, and mechanical properties of the coatings. With appropriate values of V/H and K/(V + H), the polysiloxane film had the mechanical performance comparable to that from solvent‐based one. The coating could be topically applied to human skin in vivo and in situ turned into an elastic, invisible thin film with good water resistance. In contrast to those reported polysiloxane materials, the one‐component waterborne polysiloxane coating was nontoxic and convenient for in vivo application on human body, making it be a promising candidate as artificial skin in the fields of cosmetics, medical treatment, and E‐skin.

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“…Yan et al [19] prepared woven structure-based strain sensor by carbonizing polyacrylonitrile nanofiber yarns of fabric which exhibited high sensitivity (GF = 77.3) and relatively low stretchability (strain < 12%). For above sensing performance, E-textiles based on woven structure can accurately monitor the small strain such as heartbeat, pulse, and voice facial expression recognition due to its relatively high sensitivity [20][21][22]. However, at present there were few studies on the influence of woven fabric geometric structure change and yarn deformation on its sensing performance.…”

Section: Introductionmentioning

confidence: 99%

3D network structure and sensing performance of woven fabric as promising flexible strain sensor

Liu

et al. 2019

SN Appl. Sci.

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A flexible strain sensor was developed through weaving conductive yarns to 3D woven fabric. The relationship between the sensing performance of the woven fabric and its 3D network structure containing yarn shrinkage and arrangement density, as well as fabric interweaving, was investigated according to Pierce's fabric geometry model and the assumption of elastic strain of yarn. Based on such models and assumption, the theoretical results were verified by the experimental data from uniaxial stretching, and the trends of both results were consistent. The sensitivity of woven fabric on its elastic strain is relatively small (GF < 2) and nonlinearity. With the deformation of fabric geometry structure (Stage I) caused by stretching on warp direction, the shrinkage of weft yarn (c w ) and interweaving points (n w ) decreased or the arrangement density of warp yarn (N j ) increased, resulting in improved sensitivity on warp direction. At yarn deformation stage (Stage II), the increase in interweaving points (n w ) or the decrease in arrangement density of warp yarn (N j ) could improve the sensitivity on warp direction. All the results provide a theory basis for the design and development of flexible strain sensor with promising application as wearable electronic device.

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A Stretchable Electronic Fabric Artificial Skin with Pressure‐, Lateral Strain‐, and Flexion‐Sensitive Properties

Cited by 427 publications

References 33 publications

Stretchable, Twisted Conductive Microtubules for Wearable Computing, Robotics, Electronics, and Healthcare

Stretchable, Twisted Conductive Microtubules for Wearable Computing, Robotics, Electronics, and Healthcare

One‐component waterborne in vivo cross‐linkable polysiloxane coatings for artificial skin

3D network structure and sensing performance of woven fabric as promising flexible strain sensor

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