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Dielectric permittivity of human blood of different lactate levels measured at millimeter waves

Research output: Chapter in Book/Report/Conference proceedingConference paper

Maria Koutsoupidou, Helena Cano-Garcia, Roberto L. Pricci, Shimul C. Saha, Srinivas Rana, Oana Ancu, Fulvia Draicchio, Richard Mackenzie, Panagiotis Kosmas, Efthymios Kallos

Original languageEnglish
Title of host publication2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1183-1186
Number of pages4
ISBN (Electronic)9781538613115
DOIs
Publication statusPublished - 1 Jul 2019
Event41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019 - Berlin, Germany
Duration: 23 Jul 201927 Jul 2019

Conference

Conference41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
CountryGermany
CityBerlin
Period23/07/201927/07/2019

King's Authors

Abstract

The investigation of variations in dielectric properties of blood based on its biochemical profile is important for determining the feasibility of developing electromagnetic non-invasive sensing systems for monitoring the levels of various metabolites in blood. In this paper, the real and imaginary parts of dielectric permittivity are measured as a function of lactate concentration in the 30-60 GHz frequency range using two different measurement techniques. The blood samples are collected from a healthy subject undergoing three different exercise modes and the dielectric properties are measured with an open-ended coaxial probe technique and a custom-made millimeter wave transmission system. Good correlation is observed in measurements from the two methods, suggesting that an increase in lactate concentration lowers the imaginary part of permittivity and thus causing higher attenuation.

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