Wearable sensors that can precisely detect vital signs are highly desirable for monitoring personal health conditions and medical diagnosis. In this paper, we report an ultrasensitive strain sensor consisting of a 150 nm thick highly conductive dimethylsulfoxide-doped poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) sensing layer and an elastic fluorosilicone rubber substrate. This sensor exhibits a high sensitivity at small strains (e.g., gauge factor at 0.6% strain = 280), low limit of detection (<0.2% strain), and excellent repeatability and cycling stability. Therefore, it is promising for practically detecting vital signs, tiny human motions, and sounds. Furthermore, the semitransparent shallow blue color and the soft rubbery substrate make the strain sensor beautiful and comfortable to the human body.

中文翻译：

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透明聚合物应变传感器，用于监测生命体征及其他

对于监测个人健康状况和医疗诊断，非常需要可精确检测生命体征的可穿戴传感器。在本文中，我们报告了一种超灵敏应变传感器，该传感器由150 nm厚的高导电性二甲基亚砜掺杂的聚（3,4-乙烯二氧噻吩）：聚（4-苯乙烯磺酸盐）传感层和一个弹性的氟硅橡胶基底组成。该传感器在小应变时（例如0.6％应变= 280时的应变系数）显示出高灵敏度，低检测限（<0.2％应变）以及出色的可重复性和循环稳定性。因此，在实际检测生命体征，微小的人体动作和声音方面很有希望。此外，半透明的浅蓝色和柔软的橡胶质基材使应变传感器对人体美观且舒适。