Textiles are materials that are extensively used in everyday life; textile-based sensors can, therefore, be regarded as ideal devices for a health monitor. However, previously reported textile sensors have limited prospects due to their single function or incompatibility. Traditional textile sensors generally focus on signal detection, which has not been able to be combined with an actuator to provide real-time health status feedback. Thus, to date, there are no well-established health monitoring systems based on intelligent textiles. Herein, we present a wearable batch-prepared graphene-based textile based on laser-scribing and thermal-transfer technology. Integrated with four functions of strain sensing, pressure sensing, physiological electrical sensing, and sound emitting, the GT is able to detect human body signals and transduce them to sound signals when the user is in an abnormal physical state. Moreover, the GT has high linearity for both strain and pressure sensing; the coefficients of determination exceed 99.3% and 98.2%, respectively. The performance of the device remains stable up to a pressure of 1000 kPa. The response time of the GT possession reaches as low as 85 ms at 4.2 Pa pressure. Therefore, due to their diversified functions and good performance, the research on GT is expected to extend to the fields of health monitoring, sports monitoring, and so forth.
ered the superconductivity phenomenon of magic angle of double-layer graphene, which opened a new chapter of research. Groundbreaking theoretical researches on graphene have emerged in a short period of more than ten years.Graphene is the hardest and thinnest material among 2D materials, [3] with very high light transmittance, high electron mobility, good thermal conductivity, and the ability to carry high current density. Based on these properties, it is widely used in flexible sensors, light-emitting devices, composite materials, energy, touch screens and high frequency electronics. [4][5][6][7][8] Therefore, graphene is regarded as a strategic emerging material in the 21st century. It is expected to become a landmark material in the era of human civilization after stone, bronze, steel, and silicon.According to the definition of International Organization Standardization (ISO), graphene can be monolayer, bilayer, multilayer (3-10 layers), or nanosheet (1-3 nanometers thick). As far as the raw materials, the quality of graphene produced in labs and factories varies. The ideal graphene is a perfect 2D honeycomb single crystal pure carbon material, while the actual graphene is a defective polycrystalline film or powder piled up by single crystal fragments. In 2018, Kauling et al. [9] tested and analyzed the product quality of sixty graphene manufacturers from the Americas, Europe, and Asia. The results show that the qualities of graphene products are far less than expected. Most companies only produce graphite microplatelets with very small particles rather than graphene. Thus, most of the potential application cannot be realized in these products.Graphene has gradually emerged as products in the market in recent years. Following the first application of graphene film in cellphone, the first 5th generation mobile communication technology tablet in China, was released in May 2020 with ultrathick 3D graphene cooling technology. Besides, the rapid spread of COVID-19 in 2020 led to the withdrawal of global medical resources, has inspired new application fields of graphene, such as graphene masks, [10] remote intelligent wearable devices, such as motion monitoring sensors, [11] and other graphene-based functional devices at microwave, terahertz, and optical frequencies. [12] Therefore, searching for the proper graphene-based industrial applications is a driving force for the benign development of the industry.In general, there is basically rare high-quality graphene that meets ISO standards in the market at present, which seriously Graphene, as an emerging 2D material, has been playing an important role in flexible electronics since its discovery in 2004. The representative fabrication methods of graphene include mechanical exfoliation, liquid-phase exfoliation, chemical vapor deposition, redox reaction, etc. Based on its excellent mechanical, electrical, thermo-acoustical, optical, and other properties, graphene has made a great progress in the development of mechanical sensors, microphone, sound source, electrophysio...
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