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Detection of glucose variability in saline solutions from transmission and reflection measurements using V-band waveguides

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Helena Cano-Garcia, Panagiotis Kosmas, Ioannis Sotiriou, Ioannis Papadopoulos-Kelidis, Clive Parini, Ioannis Gouzouasis, George Palikaras, Efthymios Kallos

Original languageEnglish
Article number125701
JournalMEASUREMENT SCIENCE AND TECHNOLOGY
Volume26
Issue number12
DOIs
Publication statusPublished - 26 Oct 2015

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Abstract

This paper presents experimental results that demonstrate the correlation of glucose concentration in water and saline solutions with transmitted electromagnetic (EM) energy in the frequency range of 50-75 GHz. The system is based on placing the aqueous solutions in acrylic holding tanks sandwiched between two open V-band waveguides. The measured samples have clinically relevant range of glucose concentrations, as low as 0.025 wt%. Our measurements show for the first time that it is possible to establish an approximately linear relationship between the signals transmitted through this simple waveguide-based system and the glucose content in the samples. Accurate full-wave EM simulations confirm this linear correlation. The results suggest the possibility of developing a miniaturized non-invasive glucose sensing device based on the transmission of radio waves in this frequency range.

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