Microwave Noninvasive Blood Glucose Monitoring Sensor: Penetration Depth and Sensitivity Analysis

Choi, Heungjae; Luzio, Stephen Denis; Beutler, Jan; Porch, Adrian

doi:10.1109/imbioc.2018.8428850

Cited by 9 publications

(6 citation statements)

References 9 publications

(13 reference statements)

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“…Then the same procedure was repeated for the sensing of a pure physiological solution. Then the measured values of the reflection coefficients were digitized and subsequently normalized (in so doing, we fully took into account recommendations [25] concerning the reduction of the negative influence of various factors). As a result, we obtained data convenient not only for perception, but also for their substantial analysis.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Application of Broadband Microwave Near-Field Sensors for Glucose Monitoring in Biological Media

et al. 2021

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The paper presents results of numerical simulation and experimental testing of a microwave sensor for non-invasive glucose monitoring. The sensor represents a conical horn with a conical conductor inside expanding toward the horn aperture. Such a sensor has a significantly wider passband in comparison with sensors of other designs. It is essential that the sensor geometry provides formation of an extended near-field zone with high electric field strength near the sensor aperture. A clear relationship between the dielectric permittivity of the phantom biological tissue and the frequency dependence of the parameter S11 of the sensor is observed at frequencies in the range from 1.4 to 1.7 GHz. This circumstance can be used to develop a procedure for measuring the glucose level in blood that correlates with the parameter S11 of the sensor. From the viewpoint of monitoring of the glucose content in blood, the most convenient body sensor location is on the hands or feet, in particular, wrists.

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Section: Experiments and Resultsmentioning

confidence: 99%

Application of Broadband Microwave Near-Field Sensors for Glucose Monitoring in Biological Media

et al. 2021

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“…In general, the design of microwave sensors is based on the fact that reflection, transmission, and absorption of microwaves are closely related to the dielectric properties of tissues, and the dielectric constant varies with glucose fluctuations [5, 83,84]. However, exactly where in the tissue layer the changes occur and the mechanism by which the dielectric properties change is unclear [85]. The dielectric properties of biological tissues have been widely reported in the literature [86].…”

Section: Non-invasive Blood Glucose Monitoring Technology-microwave M...mentioning

confidence: 99%

Non-Invasive Blood Glucose Monitoring Technology: A Review

Liu

Chang

Chen

et al. 2020

Sensors

264

157

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In recent years, with the rise of global diabetes, a growing number of subjects are suffering from pain and infections caused by the invasive nature of mainstream commercial glucose meters. Non-invasive blood glucose monitoring technology has become an international research topic and a new method which could bring relief to a vast number of patients. This paper reviews the research progress and major challenges of non-invasive blood glucose detection technology in recent years, and divides it into three categories: optics, microwave and electrochemistry, based on the detection principle. The technology covers medical, materials, optics, electromagnetic wave, chemistry, biology, computational science and other related fields. The advantages and limitations of non-invasive and invasive technologies as well as electrochemistry and optics in non-invasives are compared horizontally in this paper. In addition, the current research achievements and limitations of non-invasive electrochemical glucose sensing systems in continuous monitoring, point-of-care and clinical settings are highlighted, so as to discuss the development tendency in future research. With the rapid development of wearable technology and transdermal biosensors, non-invasive blood glucose monitoring will become more efficient, affordable, robust, and more competitive on the market.

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“…Then, the subtle change in dielectric properties of human tissues can be picked up by a microwave sensor and in turn, used to estimate the glucose level. Even though the relationship between blood glucose and the tissue’s dielectric properties is not fully understood [ 176 , 177 ], these techniques remain attractive alternatives to researchers as they are usually easier to implement and are more cost-effective.…”

Section: Noninvasive Sensing Techniquesmentioning

confidence: 99%

Noninvasive Glucose Sensing In Vivo

Leung

Forlenza

Prioleau

et al. 2023

Sensors

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Blood glucose monitoring is an essential aspect of disease management for individuals with diabetes. Unfortunately, traditional methods require collecting a blood sample and thus are invasive and inconvenient. Recent developments in minimally invasive continuous glucose monitors have provided a more convenient alternative for people with diabetes to track their glucose levels 24/7. Despite this progress, many challenges remain to establish a noninvasive monitoring technique that works accurately and reliably in the wild. This review encompasses the current advancements in noninvasive glucose sensing technology in vivo, delves into the common challenges faced by these systems, and offers an insightful outlook on existing and future solutions.

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Microwave Noninvasive Blood Glucose Monitoring Sensor: Penetration Depth and Sensitivity Analysis

Cited by 9 publications

References 9 publications

Application of Broadband Microwave Near-Field Sensors for Glucose Monitoring in Biological Media

Application of Broadband Microwave Near-Field Sensors for Glucose Monitoring in Biological Media

Non-Invasive Blood Glucose Monitoring Technology: A Review

Noninvasive Glucose Sensing In Vivo

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