自愈水凝胶
材料科学
MXenes公司
纳米技术
纳米复合材料
蓝牙
数码产品
可穿戴计算机
无线
计算机科学
嵌入式系统
电气工程
电信
工程类
高分子化学
作者
Haibo Wang,Jun Xiang,Wen Xiao,Xiaosheng Du,Yin Wang,Zongliang Du,Xu Cheng,Shuang Wang
标识
DOI:10.1016/j.compositesa.2022.106835
摘要
Biomimetic electronic skins (E-skins), which monitor and feedback human health, have potential in the areas of human–machine interactions and electronic devices. To advance the unsatisfactory mechanical properties, sensory performances, and the wireless convenience of E-skins, a wireless MXene-embedded hydrogel sensor was designed and fabricated based on emerging two-dimensional (2D) nanomaterials MXene nanosheets, PAM network, and gelatin physical network. The presence of dual-network (DN) structures, hydrogen bonding, electrostatic interactions, and MXene nano-reinforcement allowed the hydrogels with superior mechanical adaptability. Furthermore, due to the high conductivity of MXene nanosheets and spider filamentous porous structure, the MXene-based hydrogel sensor exhibited extremely high sensitivity (S1 = 100.4 kPa−1) over a broad pressure range and 5000-cycling dual-mode durability. More importantly, the as-made wireless sensor could accurately detect large-scale and subtle human behaviors via Bluetooth transmission. Simultaneously with the inclusion of MXene, nanocomposite hydrogels demonstrated excellent skin affinity and photo-thermal effects. This strategy paves a feasible way for the new generation of multifunctional biomimetic hypersensitive sensors, presenting a full potential in the application fields of intelligent devices, flexible robots, and biomedical supervisory.
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