Smart facemask for wireless CO<sub>2</sub> monitoring.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35013232.
- Also identified by DOI 10.1038/s41467-021-27733-3 and PMC identifier 8748626.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
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<sub>2</sub> rebreathing. Herein we report the development of a sensing platform for gaseous CO<sub>2</sub> 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.
Medical subject headings
- Biosensing Techniques
- COVID-19
- Carbon Dioxide
- Masks
- Personal Protective Equipment
- Wearable Electronic Devices