Epidermis-Inspired Ultrathin 3D Cellular Sensor Array for Self-Powered Biomedical Monitoring
Epidermis-Inspired Ultrathin 3D Cellular Sensor Array for Self-Powered Biomedical Monitoring
复制标题
受表皮启发的超薄 3D 细胞传感器阵列，用于自供电生物医学监测
DOI：
10.1021/acsami.8b14514
复制
发表时间：
2018-12-05
影响因子：
9.5
通讯作者：
Yang, Weiqing
中科院分区：
文献类型：
--
作者：
Yan, Cheng;Deng, Weili;Yang, Weiqing
Sensing devices with wearability would open the door to many advanced applications including soft robotics, artificial intelligence, and healthcare monitoring. Here, inspired by the configuration of the human epidermis, we present a flexible three-dimensional (3D) cellular sensor array (CSA) via a one-step thermally induced phase separation method. The CSA was framed by the 3D cellular electret with caged piezoelectric nanoparticles, which was ultrathin (80 pm), lightweight, and highly robust. For biomedical sensing, the 3D-CSA holds a decent pressure sensitivity up to 0.19 V kPa(-1) with a response time of less than 16 ms. Owing to its rigid structural symmetry, the 3D-CSA could be identically operated from its both sides. It was demonstrated to successfully measure the human heartbeat, detect the eyeball motion for sleeping monitoring, and tactile imaging. Mimicking the functionalities of the human skin with a self powered operation feature, the 3D-CSA was expected to represent a substantial advancement in wearable electronics for healthcare.
