Sensitivity, durability, and multifunction are the essential requirements for a high-performance wearable sensor. Here, we report a novel multifunctional sensor with high sensitivity and durability by using a buckled spider silk-like single-walled carbon nanotubes (SSL-SWNTs) film as the conducting network and a crack-shaped Au film as the sensitive transducer. Its high sensitivity is inspired by the crack-shaped structure of the spider’s slit organs, while the high durability is inspired by the mechanical robustness of the spider silk. Similar to the spider’s slit organs that can detect slight vibrations, our sensor also exhibits a high sensitivity especially to tiny strain. The proposed quantum tunneling model is consistent with experimental data. In addition, this sensor also responds sensitively to temperature with the sensitivity of 1.2%/°C. Because of the hierarchical structure like spider silk, this sensor possesses combined superiority of fast response (<60 ms) and high durability (>10 000 cycles). We also fabricate a wearable device for monitoring various human physiological signals. It is expect that this high-performance sensor will have wide potential applications in intelligent devices, fatigue detection, body monitoring, and human–machine interfacing.

中文翻译：

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受蜘蛛启发的高灵敏，耐用且多功能的传感器

灵敏度，耐用性和多功能性是高性能可穿戴传感器的基本要求。在这里，我们报告了一种新型的多功能传感器，具有高灵敏度和耐用性，通过使用弯曲的蜘蛛丝状单壁碳纳米管（SSL-SWNTs）膜作为导电网络，并使用裂纹形的Au膜作为敏感传感器。它的高灵敏度是由蜘蛛的狭缝器官的裂纹状结构引起的，而高耐用性则是由蜘蛛丝的机械坚固性引起的。与蜘蛛的狭缝器官类似，它可以检测到轻微的振动，我们的传感器也具有很高的灵敏度，尤其是对微小的应变。所提出的量子隧穿模型与实验数据吻合。此外，该传感器还对温度敏感，灵敏度为1.2％/°C。由于像蜘蛛丝一样的分层结构，该传感器具有快速响应（<60 ms）和高耐用性（> 10000次循环）的综合优势。我们还制造了可监测各种人体生理信号的可穿戴设备。预计该高性能传感器将在智能设备，疲劳检测，人体监测和人机界面方面具有广泛的潜在应用。