Flexible piezoelectric nanogenerator in wearable self-powered active sensor for respiration and healthcare monitoring
Flexible piezoelectric nanogenerator in wearable self-powered active sensor for respiration and healthcare monitoring
复制标题
用于呼吸和医疗保健监测的可穿戴自供电有源传感器中的柔性压电纳米发电机
DOI：
10.1088/1361-6641/aa68d1
复制
发表时间：
2017-06-01
影响因子：
1.9
通讯作者：
Li, Z.
中科院分区：
文献类型：
--
作者：
Liu, Z.;Zhang, S.;Li, Z.
基于柔性压电纳米发电机制造了一种用于呼吸和医疗保健监测的可穿戴自供电主动传感器。将有机硅基底上的静电纺丝聚偏二氟乙烯薄膜极化以制造柔性纳米发电机并测量其电性能。当线性电机周期性拉伸时，柔性压电纳米发电机产生的输出开路电压和短路电流分别高达 1.5 V 和 400 nA。通过与弹性绷带集成，制造了一种可穿戴自供电传感器，用于监测人体呼吸、微妙的肌肉运动和语音识别。随着呼吸的进行，传感器输出的电信号与生理信号记录系统测量的信号相对应，具有良好的可靠性和可行性。这种自供电、可穿戴有源传感器在肺功能评估、呼吸监测以及手势和声带振动检测方面具有巨大的应用潜力，可用于残疾或瘫痪患者的个人医疗保健监测。
A wearable self-powered active sensor for respiration and healthcare monitoring was fabricated based on a flexible piezoelectric nanogenerator. An electrospinning poly(vinylidene fluoride) thin film on silicone substrate was polarized to fabricate the flexible nanogenerator and its electrical property was measured. When periodically stretched by a linear motor, the flexible piezoelectric nanogenerator generated an output open-circuit voltage and short-circuit current of up to 1.5 V and 400 nA, respectively. Through integration with an elastic bandage, a wearable self-powered sensor was fabricated and used to monitor human respiration, subtle muscle movement, and voice recognition. As respiration proceeded, the electrical output signals of the sensor corresponded to the signals measured by a physiological signal recording system with good reliability and feasibility. This self-powered, wearable active sensor has significant potential for applications in pulmonary function evaluation, respiratory monitoring, and detection of gesture and vocal cord vibration for the personal healthcare monitoring of disabled or paralyzed patients.