| 학회 | 한국재료학회 |
| 학술대회 | 2017년 가을 (11/15 ~ 11/17, 경주 현대호텔) |
| 권호 | 23권 2호 |
| 발표분야 | 8. 나노센서의 핵심기술과 최근 응용 분야(Nanotechnology-based Sensors and The Recent Applications) |
| 제목 | Electronic Skin: Design of Visco-Poroelastic Ion Pump for Artificial Sensor Skin |
| 초록 | Creating artificial skin that shows the tactile-sensing capability of human skin has been a big challenge in tactile sensor research. In this talk, inspired by the sophisticated physiological tactile sensing mechanism of human skin, we created an ultrasensitive artificial sensor skin based on visco-poroelastic ion pump, in which we directly addressed the sophisticated physiological tactile sensing mechanism of mammalian skin. To this end, we emulated the Piezo2 ionic mechanotransduction protein channel with a piezocapacitive ionic mechanosensory system that engages in ion squeezing when the polymer matrix is deformed under a mechanical non-equilibrium state. The artificial sensor skin is unprecedented in its ability to sustain a high sensitivity over a broad range of pressure (20nF kPa-1 at 0-50kPa) with reproducible operation at an ultralow-voltage (1mV). This new artificial skin allows for voice identification, health monitoring, daily pressure measurements and even measurements of a heavy weight beyond capabilities of human skin. Moreover, unlike previous works, our devices could visualize the local variation in the applied pressure without using spatially distributed arrays of unit pressure-sensors. |
| 저자 | 김도환 |
| 소속 | 한양대 |
| 키워드 | electronic skin; visco-poroelastic ion pump; tactile sensor |
