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Blood Glucose Sensors Based on RF, Microwave and mmWave Techniques

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 4168

Special Issue Editor


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Guest Editor
School of Engineering, Cardiff University, Cardiff CF24 3AA, UK
Interests: microwave interdisciplinary science; microwave power amplifiers; mmWave design and on-wafer characterization; dielectric material characterization and sensing; healthcare applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The increasing prevalence of diabetes has become one of the world’s biggest healthcare challenges, yet people with diabetes are faced with invasive methods of monitoring their blood glucose, with their inherent risk of infection, and with sensors of limited lifetime owing to their electrochemical nature. Electromagnetic devices offer the best potential for delivering the “Holy Grail” of diabetes monitoring—that of a truly noninvasive, wearable blood glucose monitor. However, commercial success to date has been hindered by the huge technical challenges associated with the accurate and reliable measurement of small fluctuations of glucose concentrations inside blood vessels through the skin.

This Special Issue invites both applications of benchtop and wearable glucose monitoring techniques operating at RF, microwave, and mmWave frequencies, with special focus on addressing real-world challenges and solutions with regard to everyday use.

Dr. Heungjae Choi
Guest Editor

Manuscript Submission Information

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Keywords

  • Dielectric characterization
  • RF and microwave
  • mmWave and THz
  • Glucose sensors
  • Fluidic sensors
  • Wearable sensors
  • Continuous glucose monitoring

Published Papers (1 paper)

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12 pages, 1934 KiB  
Article
Glucose Level Sensing Using Single Asymmetric Split Ring Resonator
by Gameel Saleh, Ijlal Shahrukh Ateeq and Ibraheem Al-Naib
Sensors 2021, 21(9), 2945; https://doi.org/10.3390/s21092945 - 22 Apr 2021
Cited by 23 | Viewed by 3439
Abstract
In this article, a biosensor composed of a single metamaterial asymmetric resonator is specifically designed for sensing the glucose level of 1 µL of solution. The resonator has two gaps, and one of them ends with a semicircle shape on which the glucose [...] Read more.
In this article, a biosensor composed of a single metamaterial asymmetric resonator is specifically designed for sensing the glucose level of 1 µL of solution. The resonator has two gaps, and one of them ends with a semicircle shape on which the glucose solution is placed. This design helps in confining the drops of glucose solutions in a specific area where the field is maximally confined in order to enhance the electromagnetic wave-matter interaction. Six samples of glucose solutions with concentrations that cover hypoglycemia, normal and hyperglycemia conditions that vary from around 41 to 312 mg/dL were prepared and examined by this biosensor. The resonance frequency redshift was used as a measure of the changes in the glucose level of the solutions. Without glucose solution, an excellent agreement between the measured and simulated transmission amplitude was observed. The increase in glucose concentrations exhibited clear and noticeable redshifts in the resonance frequency. This biosensor revealed a 0.9997 coefficient of determination, which implies an excellent prediction fitting model. More importantly, a sensitivity of 438 kHz/(mg/dL) was observed over the range of concentrations of the aqueous solution. Full article
(This article belongs to the Special Issue Blood Glucose Sensors Based on RF, Microwave and mmWave Techniques)
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