Ultrafast Response Polyelectrolyte Humidity Sensor for Respiration Monitoring
Ultrafast Response Polyelectrolyte Humidity Sensor for Respiration Monitoring
复制标题
用于呼吸监测的超快响应聚电解质湿度传感器
DOI：
10.1021/acsami.8b18904
复制
发表时间：
2019-02-13
影响因子：
9.5
通讯作者：
Zhang, Tong
中科院分区：
文献类型：
--
作者：
Dai, Jianxun;Zhao, Hongran;Zhang, Tong
Respiration monitoring is important for evaluating human health. Humidity sensing is a promising way to establish a relationship between human respiration and electrical signal. This work describes polymer humidity sensors with ultrafast response for respiration monitoring. The humidity-sensitive polyelectrolyte is in situ cross-linked on the substrate printed with interdigitated electrodes by a thiol ene click reaction. The polyelectrolyte humidity sensor shows rapid water adsorption/desorption ability, excellent stability, and repeatability. The sensor with ultrafast response and recovery (0.29/0.47 s) when changing humidity between 33 and 95% shows good application prospects in breath monitoring and touchless sensing. Different respiration patterns can be distinguished, and the breath rate/depth of detection subjects can also be determined by the sensor. In addition, the obtained sensor can sense the skin evaporation in a noncontact way.
