Although flexible wearable devices have received wide attention in various application scenarios, it is still a challenge to integrate multiple functions on a single flexible wearable equipment. Here, an electrospun thermoplastic polyurethane (TPU) fibrous membrane is selected as the flexible substrate, and Ti₃C₂T_x MXene is modified on the fibrous membrane by ultrasonic coating, followed by the loading of silver nanoparticles (AgNPs) by chemical deposition to successfully prepare a AgNPs/Ti₃C₂T_x/TPU fibrous membrane. The electromagnetic interference (EMI) shielding performance of the fibrous membrane is up to 87.31 dB in a microwave frequency range of 8–12 GHz. As a strain sensor, the AgNPs/Ti₃C₂T_x/TPU fibrous membrane has a strain of 90%, a low detection limit of 0.5%, and a sensitivity up to a gauge factor (GF) of 157. The AgNPs/Ti₃C₂T_x/TPU fibrous membrane also has antibacterial and hydrophobic properties, showing the potential for application in complex environments.

中文翻译：

---

基于抗菌疏水银纳米粒子/Ti3C2TX MXene/热塑性聚氨酯纤维膜的多功能可穿戴设备用于电磁屏蔽和应变传感

尽管柔性可穿戴设备在各种应用场景中受到广泛关注，但将多种功能集成到单个柔性可穿戴设备上仍然是一个挑战。在这里，选择电纺热塑性聚氨酯 (TPU) 纤维膜作为柔性基底，通过超声涂层在纤维膜上改性Ti ₃ C ₂ T _x MXene，然后通过化学沉积加载银纳米粒子 (AgNPs) 以达到成功制备了 AgNPs/Ti ₃ C ₂ T _x/TPU纤维膜。在 8-12 GHz 的微波频率范围内，纤维膜的电磁干扰 (EMI) 屏蔽性能高达 87.31 dB。作为应变传感器，AgNPs/Ti ₃ C ₂ T _x /TPU 纤维膜具有 90% 的应变、0.5% 的低检测限和高达 157 的应变系数 (GF) 的灵敏度。AgNPs/ Ti ₃ C ₂ T _x /TPU纤维膜还具有抗菌和疏水性能，显示出在复杂环境中的应用潜力。