Open AccessGraphene oxide‐based radiofrequency identification wearable sensor for breath monitoring
Author(s) -
Caccami Maria Cristina,
Mulla Mohammad Y.S.,
Di Natale Corrado,
Marrocco Gaetano
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2017.0628
Subject(s) - graphene , wearable computer , exhalation , materials science , oxide , computer science , biomedical engineering , optoelectronics , electronic engineering , medicine , nanotechnology , embedded system , engineering , metallurgy , radiology
The monitoring of the breathing dynamic characteristics, including the presence of biomarkers in exhaled breath, is of growing interest in non‐invasive diagnosis of diseases. The authors describe a wearable radiofrequency identification device hosting a flexible antenna suitable for integration into a facemask and a sensor made of graphene oxide sensitive to the humidity variations. The resulting sensor tag was characterised in reference conditions while its communication performance was estimated by electromagnetic simulations as well as measurements over a simplified model of the human head. Finally, the whole system was tested on a volunteer and was experimentally demonstrated to be capable of detecting the inhalation/exhalation cycles and abnormal patterns of respiration like the apnea by measuring the changes in graphene oxide resistance.