Robust, self-adhesive, reinforced polymeric nanofilms enabling gas-permeable dry electrodes for long-term application
Yan Wang, Sunghoon Lee, Haoyang Wang, Zhi Jiang, Yasutoshi Jimbo, Chunya Wang, Binghao Wang, Jae Joon Kim, Mari Koizumi, Tomoyuki Yokota, Takao Someya
Abstract
Significance We have succeeded in fabricating a highly robust, adhesive, gas-permeable free-standing polymeric nanofilm with a thickness of less than 100 nm. A gas-permeable dry electrode comprising of a nanofilm and an Au layer can adhere to the human skin by van der Waals forces alone for 1 wk for high-fidelity electrocardiogram recording. Our method has overcome the major bottleneck in continuously monitoring biosignals for a long period of time with high precision under daily life conditions, opening up new opportunities in a wide range of applications in fields such as medicine, healthcare, sports, fitness, virtual reality, and entertainment.