Solvent-free fabrication of biodegradable hot-film flow sensor for noninvasive respiratory monitoring

Dinh, Toan ORCID: https://orcid.org/0000-0002-7489-9640 and Phan, Hoang-Phuong and Nguyen, Tuan-Khoa and Qamar, Afzaal and Woodfield, Peter and Zhu, Yong and Nguyen, Nam-Trung and Dao, Dzung (2017) Solvent-free fabrication of biodegradable hot-film flow sensor for noninvasive respiratory monitoring. Journal of Physics D: Applied Physics, 50 (21):215401. ISSN 0022-3727


Abstract

In this paper, we report on a low-cost, environment-friendly and wearable thermal flow sensor, which can be manufactured in-house using pencil graphite as a sensing hot film and biodegradable printing paper as a substrate, without using any toxic solvents or cleanroom facilities. The hot film flow sensor offers excellent performance such as high signal-to-noise ratio ($\geqslant $ 40 for an air flow velocity of 1 m s−1), high sensitivity to airflow (53.7 mV(m s−1)−0.8) and outstanding long-term stability (almost no drift in 24 h). The sensor can be comfortably affixed to the philtrum of patients and measures human respiration in realtime. The results indicate that the wearable thermal flow sensors fabricated by this solvent-free and user-friendly method could be employed in human respiratory monitoring.


Statistics for USQ ePrint 38203
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 -)
Date Deposited: 07 Aug 2020 01:25
Last Modified: 11 Sep 2020 01:05
Uncontrolled Keywords: noninvasive monitoring; human respiration; biodegradable; solvent-free; hot-film flow sensor
Fields of Research (2008): 09 Engineering > 0913 Mechanical Engineering > 091306 Microelectromechanical Systems (MEMS)
Fields of Research (2020): 40 ENGINEERING > 4017 Mechanical engineering > 401705 Microelectromechanical systems (MEMS)
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: https://doi.org/10.1088/1361-6463/aa6cd6
URI: http://eprints.usq.edu.au/id/eprint/38203

Actions (login required)

View Item Archive Repository Staff Only