Real-Time Monitoring of Breath Biomarkers with A Magnetoelastic Contactless Gas Sensor: A Proof of Concept

Autor: Alvaro Peña, Juan Diego Aguilera, Daniel Matatagui, Patricia de la Presa, Carmen Horrillo, Antonio Hernando, Pilar Marín
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Biosensors, Vol 12, Iss 10, p 871 (2022)
Druh dokumentu: article
ISSN: 2079-6374
DOI: 10.3390/bios12100871
Popis: In the quest for effective gas sensors for breath analysis, magnetoelastic resonance-based gas sensors (MEGSs) are remarkable candidates. Thanks to their intrinsic contactless operation, they can be used as non-invasive and portable devices. However, traditional monitoring techniques are bound to slow detection, which hinders their application to fast bio-related reactions. Here we present a method for real-time monitoring of the resonance frequency, with a proof of concept for real-time monitoring of gaseous biomarkers based on resonance frequency. This method was validated with a MEGS based on a Metglass 2826 MB microribbon with a polyvinylpyrrolidone (PVP) nanofiber electrospun functionalization. The device provided a low-noise (RMS = 1.7 Hz), fast (
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