The use of facemasks by the general population is recommended worldwide to prevent the spread of SARS-CoV-2. Despite the evidence in favour of facemasks to reduce community transmission, there is also agreement on the potential adverse effects of their prolonged usage, mainly caused by CO 2 rebreathing. Herein we report the development of a sensing platform for gaseous CO 2 real-time determination inside FFP2 facemasks. The system consists of an opto-chemical sensor combined with a flexible, battery-less, near-field-enabled tag with resolution and limit of detection of 103 and 140 ppm respectively, and sensor lifetime of 8 h, which is comparable with recommended FFP2 facemask usage times. We include a custom smartphone application for wireless powering, data processing, alert management, results displaying and sharing. Through performance tests during daily activity and exercise monitoring, we demonstrate its utility for non-invasive, wearable health assessment and its potential applicability for preclinical research and diagnostics. While facemasks are recommended to prevent the spread of SARS-CoV-2, potential adverse effects may occur upon prolonged usage. Here the authors develop and evaluate an opto-chemical sensor incorporated into a smart FFP2-type facemask for wireless, real-time CO2 monitoring.
【저자키워드】 Diagnostic markers, biomedical engineering, Electrical and electronic engineering, Sensors and probes, Optical materials, 【초록키워드】 SARS-CoV-2, facemasks, diagnostics, Spread, management, Data processing, Research, limit of detection, community transmission, General population, facemask, utility, platform, Evidence, Health Assessment, adverse effect, Non-invasive, applicability, while, Prevent, flexible, develop, evaluate, caused, include, occur, comparable, reduce, displaying, CO2, 【제목키워드】 SmaRT,