Respiration-mediated self-switched triboelectric nanogenerator for wearable point-of-care prevention and alarm of asthma. (February 2023)

• Record Type: Journal Article
• Authors: Yu, Bin; Zhou, Lian; Zhang, Xin; Hu, Guangkai; Min, Hui; Qiu, Yuyou; Huang, Tao; Wang, Yitong; Zhu, Meifang; Yu, Hao
• Is Part Of: Nano energy. Volume 106(2023)
• Publication Date: 2023-02
• Subjects: Self-switched -- Respiratory mediation -- Triboelectric nanogenerator -- Point-of-care medical service -- Asthma prevention and emergency; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2022.108058
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: To decrease the morbidity and mortality of asthma, prevention and acute episode alarms have become indispensable. The triboelectric nanogenerator (TENG)-based wearable point-of-care (POC) medical service presents a potential opportunity to implement round-the-clock prevention and continuously monitor the respiratory signals of asthmatic patients. Herein, a self-switched triboelectric nanogenerator (SS-TENG) mediated by respiratory motions is developed to provide prevention and emergency functions for asthma. The SS-TENG can supply sustained and stable electrical energy by smooth breathing motion to deliver preventive drugs with a transdermal system. This device is switched to a pulse mode by a strong and rapid respiratory motion. The outputs can be improved with orders of magnitudes, thereby endowing it with high sensitivity and resolution for emergency alarms of acute asthma episodes. Consequently, short-range visual and long-range wireless alarm indications are successfully demonstrated to send emergent messages to the monitoring terminals. As a wearable POC medical device, this SS-TENG may provide the preventive, diagnostic, and therapeutic services for respiratory diseases. Graphical Abstract: A respiration-mediated self-switched triboelectric nanogenerator (SS-TENG) is developed to provide the point-of-care (POC) prevention and emergency functions for asthma. Continuous and stable electric energy is generated by the prevention-function SS-TENG for transdermal applications. With self-switching to emergency function, both visual short-range and wireless long-range alarms are successfully achieved. This study provides a valuable attempt on triboelectric POC medical service. ga1 Highlights: A respiration-mediated self-switched TENG is developed. The POC prevention and emergency functions are provided for asthma. A transdermal drug delivery system is powered by the prevention-function SS-TENG. Both visual and wireless alarms are achieved with the emergency-function SS-TENG.