Stretchable capacitive fabric electronic skin woven by electrospun nanofiber coated yarns for detecting tactile and multimodal mechanical stimuli

You, Xiaolu; He, Jianxin; Nan, Nan; Sun, Xianqiang; Qi, Kun; Zhou, Yuman; Shao, Weili; Liu, Fan; Cui, Shizhong

doi:10.1039/c8tc03631d

Cited by 101 publications

(81 citation statements)

References 42 publications

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“…The presence of CNT or graphene within the polymer fiber also serves to improve the mechanical strength of the fibers. In the study by You et al [41], graphene oxide doped polyurethane fibers obtained using electrospinning are wound around nickel coated cotton yarns to form core-spun yarns. The obtained core-spun yarns are then wound around an elastic thread, which is then woven to obtain a fabric.…”

Section: Composite Fibers and Multilayer Nanofiber Membranementioning

confidence: 99%

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

2020

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There has been increased interest to develop protective fabrics and clothing for protecting the wearer from hazards such as chemical, biological, heat, UV, pollutants etc. Protective fabrics have been conventionally developed using a wide variety of techniques. However, these conventional protective fabrics lack breathability. For example, conventional protective fabrics offer good protection against water but have limited ability in removing the water vapor and moisture. Fibers and membranes fabricated using electrospinning have demonstrated tremendous potential to develop protective fabrics and clothing. These fabrics based on electrospun fibers and membranes have the potential to provide thermal comfort to the wearer and protect the wearer from wide variety of environmental hazards. This review highlights the emerging applications of electrospinning for developing such breathable and protective fabrics.

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Section: Composite Fibers and Multilayer Nanofiber Membranementioning

confidence: 99%

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

2020

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“…Another approach which is expanding in the field of flexible sensors is the usage of metal wires and functionalised threads/yarns for the fabrication of smart textiles [344][345][346][347][348][349][350][351]. Textile-based flexible sensors require special fabrication techniques due to the structure and characteristics of the textiles.…”

Section: Fabrication Methodsmentioning

confidence: 99%

“…Textiles conform to the body shape and this helps to increase the level of comfort of the wearer. In general, textile based sensors were fabricated using conductive wires/threads incorporated onto textiles using conventional textile manufacturing methods such as embroidery [344][345][346][347][348], knitting [349], weaving [350], or sewing [351]. The main metal wires used for the fabrication of smart textiles were Cu or Ni wires [344][345][346]349].…”

Section: Fabrication Methodsmentioning

confidence: 99%

Flexible Sensors—From Materials to Applications

et al. 2019

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Flexible sensors have the potential to be seamlessly applied to soft and irregularly shaped surfaces such as the human skin or textile fabrics. This benefits conformability dependant applications including smart tattoos, artificial skins and soft robotics. Consequently, materials and structures for innovative flexible sensors, as well as their integration into systems, continue to be in the spotlight of research. This review outlines the current state of flexible sensor technologies and the impact of material developments on this field. Special attention is given to strain, temperature, chemical, light and electropotential sensors, as well as their respective applications.

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“…These demonstrate the lack of functionality of the sensing materials, which limit their practical applications [ 16 ]. Recently, a variety of flexible tactile sensors have been developed based on different operational sensing mechanisms, including piezoresistive-based [ 17 , 18 ], piezoelectric-based [ 19 , 20 ], capacitive based [ 21 , 22 ], and optical based sensors [ 23 ]. Among them, flexible piezoresistive sensors, which are based on transducing the external mechanical pressure into resistance variation outputs, have attracted considerable attention, due to their simple structure, low-cost, and easy signal processing [ 9 , 24 ].…”

Section: Background Studymentioning

confidence: 99%

Facile Fabrication of 3D Porous Sponges Coated with Synergistic Carbon Black/Multiwalled Carbon Nanotubes for Tactile Sensing Applications

et al. 2020

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Recently, flexible tactile sensors based on three-dimensional (3D) porous conductive composites, endowed with high sensitivity, a wide sensing range, fast response, and the capability to detect low pressures, have aroused considerable attention. These sensors have been employed in different practical domain areas such as artificial skin, healthcare systems, and human–machine interaction. In this study, a facile, cost-efficient method is proposed for fabricating a highly sensitive piezoresistive tactile sensor based on a 3D porous dielectric layer. The proposed sensor is designed with a simple dip-coating homogeneous synergetic conductive network of carbon black (CB) and multi-walled carbon nanotube (MWCNTs) composite on polydimethysiloxane (PDMS) sponge skeletons. The unique combination of a 3D porous structure, with hybrid conductive networks of CB/MWCNTs displayed a superior elasticity, with outstanding electrical characterization under external compression. The piezoresistive tactile sensor exhibited a high sensitivity of (15 kPa−1), with a rapid response time (100 ms), the capability of detecting both large and small compressive strains, as well as excellent mechanical deformability and stability over 1000 cycles. Benefiting from a long-term stability, fast response, and low-detection limit, the piezoresistive sensor was successfully utilized in monitoring human physiological signals, including finger heart rate, pulses, knee bending, respiration, and finger grabbing motions during the process of picking up an object. Furthermore, a comprehensive performance of the sensor was carried out, and the sensor’s design fulfilled vital evaluation metrics, such as low-cost and simplicity in the fabrication process. Thus, 3D porous-based piezoresistive tactile sensors could rapidly promote the development of high-performance flexible sensors, and make them very attractive for an enormous range of potential applications in healthcare devices, wearable electronics, and intelligent robotic systems.

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Stretchable capacitive fabric electronic skin woven by electrospun nanofiber coated yarns for detecting tactile and multimodal mechanical stimuli

Abstract: An electronic fabric based on stretchable capacitive sensor arrays detecting tactile and multimodal mechanical stimuli is presented.

Cited by 101 publications

References 42 publications

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

Flexible Sensors—From Materials to Applications

Facile Fabrication of 3D Porous Sponges Coated with Synergistic Carbon Black/Multiwalled Carbon Nanotubes for Tactile Sensing Applications

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