Nacre-inspired highly stretchable piezoresistive Cu–Ag nanowire/graphene synergistic conductive networks for strain sensors and beyond

2019 ◽  
Vol 7 (23) ◽  
pp. 7061-7072 ◽  
Author(s):  
Xiangying Meng ◽  
Songfang Zhao ◽  
Zhe Zhang ◽  
Ruliang Zhang ◽  
Jinhui Li ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Strain Sensors ◽  
Strain Sensing ◽  
Geometric Structures ◽  
Sensing Range ◽  
Highly Stretchable ◽  
Ag Nanowire

Recently, it has become highly desirable but remains a challenge to design strain-sensing materials with rational geometric structures that endow the strain sensors high sensitivity, large stretchability and a broad sensing range simultaneously.

Highly stretchable and sensitive strain sensors based on carbon nanotube–elastomer nanocomposites: the effect of environmental factors on strain sensing performance

2020 ◽  
Vol 8 (18) ◽  
pp. 6185-6195 ◽  
Author(s):  
Mohammad Nankali ◽  
Norouz Mohammad Nouri ◽  
Mahdi Navidbakhsh ◽  
Nima Geran Malek ◽  
Mohammad Amin Amindehghan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Environmental Factors ◽  
Environmental Parameters ◽  
Strain Sensors ◽  
Sensitive Strain ◽  
Effect Of Temperature ◽  
Strain Sensing ◽  
Highly Stretchable ◽  
The Impact ◽  
Sensing Performance

The impact of environmental parameters on the sensing behavior of carbon nanotube–elastomer nanocomposite strain sensors has been investigated, revealing significant effect of temperature and humidity variations on the sensing performance.

Flexible Ti3C2Tx MXene/ink human wearable strain sensors with high sensitivity and a wide sensing range

2020 ◽  
Vol 315 ◽  
pp. 112304
Author(s):  
Ziang Ma ◽  
Keming Ma ◽  
Shaowei Lu ◽  
Sai Wang ◽  
Xingmin Liu ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Strain Sensors ◽  
Sensing Range

Highly sensitive, durable and stretchable plastic strain sensors using sandwich structures of PEDOT:PSS and an elastomer

2018 ◽  
Vol 2 (2) ◽  
pp. 355-361 ◽  
Author(s):  
Xi Fan ◽  
Naixiang Wang ◽  
Jinzhao Wang ◽  
Bingang Xu ◽  
Feng Yan
Keyword(s):  
Plastic Strain ◽  
Sandwich Structures ◽  
Strain Sensor ◽  
High Sensitivity ◽  
Strain Sensors ◽  
Strain Sensing ◽  
Highly Sensitive

A stretchable plastic strain sensor was fabricated, showing high sensitivity and a broad strain-sensing region with good durability.

Textile strain sensors: a review of the fabrication technologies, performance evaluation and applications

2019 ◽  
Vol 6 (2) ◽  
pp. 219-249 ◽  
Author(s):  
Shayan Seyedin ◽  
Peng Zhang ◽  
Maryam Naebe ◽  
Si Qin ◽  
Jun Chen ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Large Strain ◽  
Strain Sensors ◽  
Material Structure ◽  
Strain Sensing ◽  
Sensing Range

Strain sensors that are made of textiles offer wearability and large strain sensing range. Recent exciting developments in material, structure, fabrication, performance, and application of textile strain sensors are evaluated and guidelines are provided to overcome the current challenges.

Ultra-stretchable and highly sensitive strain sensor based on gradient structure carbon nanotubes

Nanoscale ◽  
2018 ◽  
Vol 10 (28) ◽  
pp. 13599-13606 ◽  
Author(s):  
Binghao Liang ◽  
Zhiqiang Lin ◽  
Wenjun Chen ◽  
Zhongfu He ◽  
Jing Zhong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Strain Sensor ◽  
High Sensitivity ◽  
Strain Sensors ◽  
Sensitive Strain ◽  
Gauge Factor ◽  
Gradient Structure ◽  
Highly Sensitive ◽  
Highly Stretchable

A highly stretchable and sensitive strain sensor based on a gradient carbon nanotube was developed. The strain sensors show an unprecedented combination of both high sensitivity (gauge factor = 13.5) and ultra-stretchability (>550%).

scholarly journals Highly Stretchable, Elastic, and Sensitive MXene-Based Hydrogel for Flexible Strain and Pressure Sensors

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Yao Lu ◽  
Xinyu Qu ◽  
Wen Zhao ◽  
Yanfang Ren ◽  
Weili Si ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Full Range ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Strain Sensors ◽  
Poly Vinyl Alcohol ◽  
Wearable Electronics ◽  
Double Network ◽  
Hydrogel Matrix ◽  
Highly Stretchable

Electronic skin is driving the next generation of cutting-edge wearable electronic products due to its good wearability and high accuracy of information acquisition. However, it remains a challenge to fulfill the requirements on detecting full-range human activities with existing flexible strain sensors. Herein, highly stretchable, sensitive, and multifunctional flexible strain sensors based on MXene- (Ti3C2Tx-) composited poly(vinyl alcohol)/polyvinyl pyrrolidone double-network hydrogels were prepared. The uniformly distributed hydrophilic MXene nanosheets formed a three-dimensional conductive network throughout the hydrogel, endowing the flexible sensor with high sensitivity. The strong interaction between the double-network hydrogel matrix and MXene greatly improved the mechanical properties of the hydrogels. The resulting nanocomposited hydrogels featured great tensile performance (2400%), toughness, and resilience. Particularly, the as-prepared flexible pressure sensor revealed ultrahigh sensitivity (10.75 kPa-1) with a wide response range (0-61.5 kPa), fast response (33.5 ms), and low limit of detection (0.87 Pa). Moreover, the hydrogel-based flexible sensors, with high sensitivity and durability, could be employed to monitor full-range human motions and assembled into some aligned devices for subtle pressure detection, providing enormous potential in facial expression and phonation recognition, handwriting verification, healthy diagnosis, and wearable electronics.

Ti3C2Tx MXene/polyvinyl alcohol decorated polyester warp knitting fabric for flexible wearable strain sensors

2021 ◽  
pp. 004051752110441
Author(s):  
Qinghua Yu ◽  
Jinhua Jiang ◽  
Chuanli Su ◽  
Yaoli Huang ◽  
Nanliang Chen ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Self Assembly ◽  
Low Cost ◽  
Strain Sensor ◽  
High Sensitivity ◽  
Fast Response ◽  
Disease Diagnosis ◽  
Strain Sensors ◽  
Layer By Layer ◽  
Sensing Range

Flexible wearable strain sensors with excellent sensing performance have received widespread interest due to their superior application capability in the field of human-computer interaction, sports rehabilitation, and disease diagnosis. But at present, it is still a considerable challenge to exploit a flexible strain sensor with high sensitivity and wide sensing range that is easily manufactured, low-cost, and easily integrable into clothing. MXene is a promising material sensitive enough for flexible sensors due to its superior conductivity and hydrophilicity. The warp knitting weft insertion textile structure gives the fabric excellent elasticity, making it suitable as a flexible, stretchable substrate. Therefore, utilizing a polyester elastic fabric with a warp knitting weft insertion structure, a fabric strain sensor with high sensitivity and wide sensing range prepared by layer-by-layer self-assembly of polyvinyl alcohol layers and MXene layers is reported in this study. The strain sensor exhibits high sensitivity (up to 288.43), a wide sensing range (up to 50%), fast response time (50 ms), ultra-low detection limit (a strain of 0.067%), excellent cycle stability (1000 cycles), and good washability. Besides, affixing the MXene/polyvinyl alcohol/polyester elastic fabric strain sensor on the joints can detect the movement of limbs. Therefore, the MXene/polyvinyl alcohol/polyester elastic fabric strain sensor demonstrates potential application opportunities in smart wearable electronic devices, and the researcher can also apply this method in the production of other flexible, intelligent wearable devices.

A highly flexible and multifunctional strain sensor based on a network-structured MXene/polyurethane mat with ultra-high sensitivity and a broad sensing range

Nanoscale ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 9949-9957 ◽  
Author(s):  
Kai Yang ◽  
Fuxing Yin ◽  
Dan Xia ◽  
Huifen Peng ◽  
Jinzheng Yang ◽  
...  
Keyword(s):  
Strain Sensor ◽  
High Sensitivity ◽  
Strain Sensing ◽  
Sensing Range

A highly flexible and stretchable network-structured MXene/polyurethane mat demonstrated ultra-high sensitivity and an ultra-wide sensing range for strain sensing.

Three-Dimensional Graphene-Based Composite for Elastic Strain Sensor Applications

MRS Advances ◽  
2016 ◽  
Vol 1 (34) ◽  
pp. 2415-2420 ◽  
Author(s):  
Jinhui Li ◽  
Guoping Zhang ◽  
Rong Sun ◽  
C. P. Wong
Keyword(s):  
Flexible Electronics ◽  
Performance Monitoring ◽  
Three Dimensional ◽  
Strain Sensor ◽  
High Sensitivity ◽  
Human Motion ◽  
Strain Sensors ◽  
Sensor Applications ◽  
Human Motion Detection ◽  
Highly Stretchable

ABSTRACTFlexible electronics has emerged as a very promising field, in particular,wearable, bendable, and stretchable strain sensors with high sensitivity which could be used for human motion detection, sports performance monitoring, etc. In this paper, a highly stretchable and sensitive strain sensor composed of reduced graphene oxide foam and elastomer composite is fabricated by assembly and followed by a polymer immersing process. The strain sensor has demonstrated high stretchability and sensitivity. Furthermore, the device was employed for gauging muscle-induced strain which results in high sensitivity and reproducibility. The developed strain sensors showed great application potential in fields of biomechanical systems.

Flexible polypyrrole-coated conductive fabric sensor for large deformation measurement

2019 ◽  
Vol 31 (5) ◽  
pp. 609-618
Author(s):  
Chi Zhang ◽  
Pu Xue ◽  
Yubo Luo
Keyword(s):  
Large Deformation ◽  
Strain Range ◽  
High Sensitivity ◽  
Training System ◽  
Strain Sensors ◽  
Strain Sensing ◽  
Mechanism Study ◽  
Resistance Change ◽  
Content Type ◽  
Conductive Fabric

Purpose Strain sensors have been widely used to measure the strain of the structure. However, the ordinary sensing elements are not suitable for measuring large deformation on an irregular surface, which limits their applications. Recently, flexible sensors have attracted extensive interest because they can overcome the shortage of the ordinary sensing elements. The paper aims to discuss this issue. Design/methodology/approach In this paper, the whole measurement process of strain sensing behavior and the dimension design of fle3xible strain sensing system use the macroscopic measurement method of material tensile test to accurately measure the resistance change with strain. Afterwards, combining electrical components, the flexible strain sensors are produced for two biomedical applications: the wearable data-collecting gloves and rehabilitation training system. Findings The results show that the developed conductive fabric can exhibit high sensitivity, large workable strain range (>50 percent) under simple and repeated tension and good stability. Both applications demonstrate that the polypyrrole-coated fabric sensor can successfully measure the large and repeat strain, capture the motion of body and display corresponding information almost in real time. Originality/value The limitation lies in the lack of a holistic strain sensing mechanism study, and the lack of a corresponding theoretical model to explain the experimental results.

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