Frequency selective metasurface based radio frequency glucose sensor with a periodic array of meta cells.
Product innovation
Frequency selective surface
Health-care electronics
Maxwell-Garnett approximation
Metasurface
Non-invasive glucose measurement
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
28 10 2024
28 10 2024
Historique:
received:
26
07
2024
accepted:
16
10
2024
medline:
29
10
2024
pubmed:
29
10
2024
entrez:
29
10
2024
Statut:
epublish
Résumé
Nowadays, the operating principle of most of the experimental electromagnetic glucose sensors is based on the effect of an anomalous dispersion caused by a direct contact between an object under test and a two-dimensional metasurface. Due to the repeated uses, the metasurface will be subjected to a chemical attack over time. To avoid this problem, this work proposes a novel glucose sensor that is equipped with an interfacial dielectric layer of 0.254 mm thickness to separate the object under test and the metasurface. The results of our analysis suggest that, if the interfacial dielectric layer is sufficiently thin, there will be no shortage of sensitivity in the proposed sensor. Consistent with our theoretical prediction, the proposed sensor was found to resonate at 9-10 GHz, with its resonant frequency responding to the glucose concentration in a dose dependent manner. The correlation the resonant frequency shift and the glucose concentration was found to be highly linear over the clinical diabetic range with a sensitivity of 4 MHz/(mg dL
Identifiants
pubmed: 39468173
doi: 10.1038/s41598-024-76741-y
pii: 10.1038/s41598-024-76741-y
doi:
Substances chimiques
Glucose
IY9XDZ35W2
Blood Glucose
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
25716Subventions
Organisme : Researchers Supporting Project, King Saud University, Riyadh, Saudi Arabia
ID : RSP2024R482
Informations de copyright
© 2024. The Author(s).
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