scholarly journals Advances in Self-Powered Chemical Sensing via a Triboelectric Nanogenerator

Nanoscale ◽  
2020 ◽  
Author(s):  
Congxi Huang ◽  
Guorui Chen ◽  
Ardo Nashalian ◽  
Jun Chen
Keyword(s):  
Environmental Protection ◽  
Human Body ◽  
Chemical Sensors ◽  
Chemical Sensing ◽  
Triboelectric Nanogenerator ◽  
Self Powered ◽  
Human Healthcare

Chemical sensors allow for continuous detection and analysis of underexplored molecules on the human body and the surroundings, which hold bright applications on human healthcare and environmental protection. With the...

Powering Healthcare IoT Sensors-Based Triboelectric Nanogenerator

2020 ◽  
pp. 29-51
Author(s):  
Saeed Ahmed Khan ◽  
Shamsuddin Lakho ◽  
Ahmed Ali ◽  
Abdul Qadir Rahimoon ◽  
Izhar Hussain Memon ◽  
...  
Keyword(s):  
Human Body ◽  
Pressure Sensors ◽  
Wearable Devices ◽  
Temperature Sensors ◽  
The Body ◽  
Body Motion ◽  
Triboelectric Nanogenerator ◽  
Self Powered ◽  
Fitness Tracking ◽  
Triboelectric Nanogenerators

Most of the emerging electronic devices are wearable in nature. However, the frequent changing or charging the battery of all wearable devices is the big challenge. Interestingly, with those wearable devices that are directly associated with the human body, the body can be used in transferring or generating energy in a number of techniques. One technique is triboelectric nanogenerators (TENG). This chapter covers different applications where the human body is used as a triboelectric layer and as a sensor. Wearable TENG has been discussed in detail based on four basic modes that could be used to monitor the human health. In all the discussions, the main focus is to power the wearable healthcare internet of things (IoT) sensor through human body motion based on self-powered TENG. The IoT sensors-based wearable devices related to human body can be used to develop smart body temperature sensors, pressure sensors, smart textiles, and fitness tracking sensors.

scholarly journals Flexible and Wearable PDMS-Based Triboelectric Nanogenerator for Self-Powered Tactile Sensing

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1304 ◽  
Author(s):  
Jie Wang ◽  
Shuo Qian ◽  
Junbin Yu ◽  
Qiang Zhang ◽  
Zhongyun Yuan ◽  
...  
Keyword(s):  
Human Body ◽  
Flexible Electronics ◽  
Mechanical Energy ◽  
Electric Energy ◽  
Green Light ◽  
Triboelectric Nanogenerator ◽  
Good Sensitivity ◽  
Pdms Film ◽  
Compact Size ◽  
Self Powered

Flexible electronics devices with tactile perception can sense the mechanical property data of the environment and the human body, and they present a huge potential in the human health system. In particular, the introduction of ultra-flexible and self-powered characteristics to tactile sensors can effectively reduce the problems caused by rigid batteries. Herein, we report a triboelectric nanogenerator (TENG), mainly consisting of an ultra-flexible polydimethylsiloxane (PDMS) film with micro-pyramid-structure and sputtered aluminum electrodes, which achieves highly conformal contact with skin and the self-powered detection of human body motions. The flexible polyethylene terephthalate (PET) film was selected as spacer layer, which made the sensor work in the contact-separation mode and endowed the perfect coupling of triboelectrification and electrostatic induction. Moreover, the controllable and uniform micro-structure PDMS film was fabricated by using the micro-electro-mechanical system (MEMS) manufacturing process, bringing a good sensitivity and high output performance to the device. The developed TENG can directly convert mechanical energy into electric energy and light up 110 green Light-Emitting Diodes (LEDs). Furthermore, the TENG-based sensor displays good sensitivity (2.54 V/kPa), excellent linearity (R2 = 0.99522) and good stability (over 30,000 cycles). By virtue of the compact size, great electrical properties, and great mechanical properties, the developed sensor can be conformally attached to human skin to monitor joint movements, presenting a promising application in wearable tactile devices. We believe that the ultra-flexible and self-powered tactile TENG-based sensor could have tremendous application in wearable electrons.

scholarly journals Silicon rubber/expandable microsphere based triboelectric nanogenerator for harvesting biomechanical energy

2021 ◽  
Vol 2076 (1) ◽  
pp. 012098
Author(s):  
Shasha Lv ◽  
Tao Huang ◽  
Hao Yu
Keyword(s):  
Energy Harvesting ◽  
Flat Plate ◽  
Human Body ◽  
Spin Coating ◽  
Daily Life ◽  
Triboelectric Nanogenerator ◽  
Silicon Rubber ◽  
Conductive Fabric ◽  
Energy Harvesters ◽  
Self Powered

Abstract Triboelectric nanogenerator (TENG) is favorable for harvesting adaptable and complex biomechanical energy in our daily life. Here, silicon rubber/expandable microsphere TENG was achieved by spin-coating a mixture of expandable microspheres and silicon rubber on a flat plate with conductive fabric. Furthermore, self-made flexible TPU/MWCNTs electrodes replaced commercial conductive fabric to make TENG more adapt to skin of human body. Finally, the optimized TENG in this work demonstrates energy harvesting capabilities and can be applied in self-powered sensor systems and provides new dimensions for biomechanical energy harvesters and wearable self-powered electronics.

Triboelectric nanogenerator based self-powered sensor for artificial intelligence

Nano Energy ◽  
2021 ◽  
Vol 84 ◽  
pp. 105887
Author(s):  
Yuankai Zhou ◽  
Maoliang Shen ◽  
Xin Cui ◽  
Yicheng Shao ◽  
Lijie Li ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Triboelectric Nanogenerator ◽  
Self Powered

scholarly journals Self-powered multifunctional sensing based on super-elastic fibers by soluble-core thermal drawing

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengxiao Chen ◽  
Zhe Wang ◽  
Qichong Zhang ◽  
Zhixun Wang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Polymer Fibers ◽  
Elastic Fibers ◽  
Triboelectric Nanogenerator ◽  
Large Area ◽  
Manufacturing Method ◽  
Low Viscosity ◽  
Ion Movements ◽  
Self Powered ◽  
Thermal Drawing ◽  
Viscosity Polymer

AbstractThe well-developed preform-to-fiber thermal drawing technique owns the benefit to maintain the cross-section architecture and obtain an individual micro-scale strand of fiber with the extended length up to thousand meters. In this work, we propose and demonstrate a two-step soluble-core fabrication method by combining such an inherently scalable manufacturing method with simple post-draw processing to explore the low viscosity polymer fibers and the potential of soft fiber electronics. As a result, an ultra-stretchable conductive fiber is achieved, which maintains excellent conductivity even under 1900% strain or 1.5 kg load/impact freefalling from 0.8-m height. Moreover, by combining with triboelectric nanogenerator technique, this fiber acts as a self-powered self-adapting multi-dimensional sensor attached on sports gears to monitor sports performance while bearing sudden impacts. Next, owing to its remarkable waterproof and easy packaging properties, this fiber detector can sense different ion movements in various solutions, revealing the promising applications for large-area undersea detection.

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