CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiaodi Zhong,Tao Song,Haoran Dong,Saihua Jiang,Ruichao Wei
Currently, wearable sensors have been widely used for human behavior monitoring. Among them, triboelectric nanogenerator (TENG) textile has the functions of power generation and active sensing, showing great advantages in energy collection and signal transmission. However, the TENG textiles face problems such as limited recognition accuracy, insufficient flexibility, missed fashion sense, and complex manufacturing processes. To address the above issues, a core–shell structure integrated conductive fiber (C-fiber) based on ionogel and a hollow silicone tube are displayed. Owing to the fact that the C-fiber can be synthesized through a simple one-step UV curing process, it has the potential for large-scale production. Due to the dyeability of ionogel and the transparency of hollow tube, the C-fiber has the ability to obtain personalized colors. This fiber can be further woven into a flexible fabric sensor (W-TENG) for high-precision human behavior monitoring. Noteworthiness, the W-TENG still has flexibility and output signal in environments ranging from −18 to 200 °C,the strong wide temperature adaptability stem from the heat and frost resistance of the materials. By assembling W-TENG onto the human body, daily movements, fall types, and post fall states can be perceived. Furthermore, complex motion data is trained by support vector machine (SVM), and the recognition accuracy for different fall categories can reach 100%. In practical applications, TENG could be equipped with custom bluetooth modules to monitor falls in real-time during walking, and provide timely treatment for the injured.
研究领域:
生物医学工程
·
柔性电子学
·
可穿戴传感器
·
人机交互
·
运动健康监测
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Xuejiao Tao,Yuman Zhou,Kun Qi,Chaozhong Guo,Yunling Dai,Jianxin He,Zhao Dai
Flexible triboelectric generators present a wide range of prospective applications owing to their small size, light weight, and wearability; in addition, they can convert external mechanical energy into electrical energy to provide an energy supply for wearable electronic products. In this study, a wearable textile triboelectric generator was developed by weaving polyurethane (PU) nanofiber core-spun yarn and Si 3 N 4 -electret-doped polyvinylidene fluoride (PVDF) nanofiber core-spun yarn into a double-layer fabric. Within the double-layer fabric, one layer was Si 3 N 4 -doped PVDF (denoted as Si 3 N 4 @PVDF) nanofiber fabric, and the other was PU nanofiber fabric. When subjected to an external mechanical force, PU nanofiber fabric and Si 3 N 4 @PVDF nanofiber fabric came into contact and were able to convert external mechanical energy into electrical energy. The most notable instantaneous electrical performance of this triboelectric nanogenerator was open circuit voltage of 71 V, short-circuit current of 0.7 μA, and output power of 56 μW. Additionally, the wearable textile triboelectric generator exhibited superior washability, stability, and cycle durability. More significantly, it was capable of driving some low-consumption electronic products, including capacitors, LED bulbs, and digital meters, thereby exhibiting a strong potential for flexible self-powered electronic devices and intelligent textiles .
研究领域:
纳米能源材料
·
智能纺织工程
·
柔性电子学
·
能量收集技术
·
可穿戴设备
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2019
·
IF 6.361
Kun Qi,Hongbo Wang,Xiaolu You,Xuejiao Tao,Mengying Li,Yuman Zhou,Yimin Zhang,Jianxin He,Weili Shao,Shizhong Cui
Highly sensitive wearable textile pressure sensors represent the key components of smart textiles and personalized electronics, with potential applications in biomedical monitoring, electronic skin, and human-machine interfacing. Here, we present a simple and low-cost strategy to fabricate highly sensitive wearable textile pressure sensors for non-invasive human motion and physiological signal monitoring and the detection of dynamic tactile stimuli. The wearable textile sensor was woven using a one-dimensional (1D) weavable core-sheath nanofiber yarn, which was obtained by coating a Ni-coated cotton yarn electrode with carbon nanotube (CNT)-embedded polyurethane (PU) nanofibers using a simple electrospinning technique . In our design, the three-dimensional elastic porous nanofiber structure of the force-sensing layer and hierarchical fiber-bundled structure of the conductive Ni-coated electrode provide the sensor with a relatively large surface area, and a sufficient surface roughness and elasticity. This leads to rapid and sharp increases in the contact area under stimuli with low external pressure. As a result, the textile pressure sensor exhibits the advantages of a high sensitivity (16.52 N −1 ), wide sensing range (0.003–5 N), and short response time (~0.03 s). Owing to these merits, our textile-based sensor can be directly attached to the skin as usual and conformally fit the shape deformations of the body’s complex flexible curved surfaces. This contributes to the reliable real-time monitoring of human movements, ranging from subtle physiological signals to vigorous movements. Moreover, a large-area textile sensing matrix is successfully fabricated for tactile mapping of spatial pressure by being worn on the surface of wrist, highlighting the tremendous potential for applications in smart textiles and wearable electronics .
研究领域:
生物医学工程
·
柔性电子学
·
智能纺织品
·
可穿戴传感器
·
人机交互
·
转化医学
✓ 已验证
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2022
·
IF 6.76
Shuoshuo Wang,Wubin Chen,Lina Wang,Juming Yao,Guocheng Zhu,Baochun Guo,Jiri Militky,Mohanapriya Venkataraman,Ming Zhang
Ultraviolet radiation is extremely harmful to humans and often occurs in high-temperature weather. The development of intelligent textiles based on UV protection and thermal regulation is paramount. In this research, we use coaxial electrospinning technology to prepare anti-ultraviolet smart thermo-regulating nanofiber membranes. The zinc oxide (ZnO) and octadecane were incorporated into nanofibers with the polyacrylonitrile (PAN)/ZnO as sheath and the octadecane as core successfully. The composite nanofibers have excellent comprehensive properties, the highest melting enthalpy is 111.38 J/g, and the UPF value is 86.21. This multifunctional nanofiber membrane has broad prospects in outdoor products, electronic component protection, and military products.
研究领域:
材料科学
·
纳米技术
·
智能纺织品
·
功能高分子
·
热能存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）