Carbon nanotube-paper composite-capacitive sensor for respiratory monitoring

Recent COVID-19 pandemic highlights the importance of monitoring and prediction of acute respiratory illness. Few options are available for convenient respiratory monitoring in both hospital and community settings. This paper presents a novel respiratory monitoring sensor made of carbon nanotube-paper composites (CPC). A CPC capacitive sensor fabricated with tensional fracture consists of numerous cellulose fibers coated with carbon nanotubes (CNTs). The high aspect ratio structure significantly enhances the capacitive sensitivity due to the high electric field. A CPC-wearable sensor is characterized in comparison to a sensor made of aluminum electrodes followed by monitoring of respiratory efforts. © 2020 CBMS-0001