Superstretching MXene Composite Hydrogel as a Bidirectional Stress Response Thixotropic Sensor
| Autor: | Yongjie Dong, Shaoyu Lü, Yingjie Wang, Siqi Chen, Song Ma, Jiayuan Ren, Xipeng Yang |
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| Rok vydání: | 2021 |
| Předmět: |
Thixotropy
Materials science Acoustics Composite number Motion detection 02 engineering and technology Bending 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Signal 0104 chemical sciences Stress (mechanics) General Materials Science Resilience (materials science) 0210 nano-technology Sensitivity (electronics) |
| Zdroj: | ACS Applied Materials & Interfaces. 13:13629-13636 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.0c21598 |
| Popis: | The arrival of the era of artificial intelligence is constantly advancing the development of flexible electronic materials. However, low mechanical properties, nonflexible signal transmission, and insensitive signal output have restricted their development as sensors. In this study, a superstretching MXene composite conductive hydrogel was developed with a tensile strain of more than 1800%. The hydrogel was used as a flexible wearable sensor to detect human motion signals in real time. High sensitivity was achieved using the sensor to discern multidirectional human motions, such as bending of human joints, throat vocalization, swallowing, and pulse beat. In addition, rapid resilience was observed for the MXene composite hydrogel after unloading reverse compressive stress, which can quickly cause a specific current response in the micropressure area without leaving any traces. This thixotropic sensor achieves a rapid response to bidirectional stress and has huge application prospects in the field of human body motion detection and national defense information encryption. |
| Databáze: | OpenAIRE |
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