Noncontact characterization of glucose by a waveguide microwave probe

Kim, Seungwan; Kim, Jongchel; Babajanyan, Arsen; Lee, Kiejin; Friedman, Barry

doi:10.1016/j.cap.2008.08.007

Cited by 26 publications

(7 citation statements)

References 19 publications

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“…Despite the limitation, this technique would be applicable to measure changes in the blood glucose concentrations of diabetes patients whose other blood solutes are relatively stable. As reported in other researches 39 , 64 , 65 , the response of the mixture has an additive effect and is the sum of the influences of both substances (the impact of NaCl was much higher).…”

Section: Resultssupporting

confidence: 64%

Visualization of microwave near-field distribution in sodium chloride and glucose aqueous solutions by a thermo-elastic optical indicator microscope

Baghdasaryan

Babajanyan

Odabashyan

et al. 2021

Sci Rep

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In this study, a new optical method is presented to determine the concentrations of NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope. By measuring the microwave near-field distribution intensity, concentration changes of NaCl and glucose aqueous solutions were detected in the 0–100 mg/ml range, when exposed to microwave irradiation at 12 GHz frequency. Microwave near-field distribution intensity decreased as the NaCl or glucose concentration increased due to the changes of the absorption properties of aqueous solution. This method provides a novel approach for monitoring NaCl and glucose in biological liquids by using a CCD sensor capable of visualizing NaCl and glucose concentrations without scanning.

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Section: Resultssupporting

confidence: 64%

Visualization of microwave near-field distribution in sodium chloride and glucose aqueous solutions by a thermo-elastic optical indicator microscope

Baghdasaryan

Babajanyan

Odabashyan

et al. 2021

Sci Rep

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“…Kim et al measured glucose solutions of 0–50 mg/mL using a microwave dielectric waveguide probe [ 68 ]. The probe-based sensor consisted of a half-wavelength dielectric resonator coupled with a microstrip line, and the resonant frequency was 2.15 GHz, as shown in Figure 7 a.…”

Section: Radio-frequency/microwave-based Glucose Sensorsmentioning

confidence: 99%

Radio-Frequency Biosensors for Real-Time and Continuous Glucose Detection

Jang

Lee

Yook

2021

Sensors

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This review paper focuses on radio-frequency (RF) biosensors for real-time and continuous glucose sensing reported in the literature, including our recent research. Diverse versions of glucose biosensors based on RF devices and circuits are briefly introduced, and their performances are compared. In addition, the limitations of the developed RF glucose biosensors are discussed. Finally, we present perspectives on state-of-art RF biosensing chips for point-of-care diagnosis and describe their future challenges.

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“…On the other hand, the work presented in [28], has the quite small relative change in the magnitude of the transmission coefficient that necessities the requirement of the larger sample volume to obtain the desired sensitivity. The work presented in [29] shows that the variation in glucose concentration can also be detected using the magnitude of measured S -parameters with limited accuracy. The all abovementioned the sensors are actually non-flexible type.…”

Section: Introductionmentioning

confidence: 99%

Flexible biomedical RF sensors to quantify the purity of medical grade glycerol and glucose concentrations

Tiwari

Singh

Mondal

et al. 2019

Int. J. Microw. Wireless Technol.

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A novel flexible radio frequency (RF) sensor is designed to facilitate the accurate testing of various samples used in the biomedical industry at the industrial, scientific and medical (ISM) frequency band. The proposed RF biosensor comprises a liquid channel-loaded interdigitated capacitor, which is integrated on a coplanar waveguide structure. The prototype of the sensor is fabricated on a 0.13 mm thin biodegradable polyethylene terephthalate polyester film to perform the testing of various bio-graded samples by recording the corresponding resonant frequency. It is observed that there is a noticeable change between the measured resonant frequencies of these samples, which primarily occurs due to the difference in their dielectric properties. The designed sensor was used to monitor and investigate the quality of glycerol, which is the most commonly used raw ingredient in the biomedical and food industry. The determination of glucose concentration in base fluids is considered to ease the challenges faced by doctors and biochemists regarding the monitoring of glucose concentration. It is found that the proposed sensor can quantify the glycerol purity up to the minimum specified adulteration level of 2 and 1% corresponding to toxic contaminants diethylene glycol and ethylene glycol, respectively, and the glucose concentration of 0.5 mg/ml.

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Noncontact characterization of glucose by a waveguide microwave probe

Cited by 26 publications

References 19 publications

Visualization of microwave near-field distribution in sodium chloride and glucose aqueous solutions by a thermo-elastic optical indicator microscope

Visualization of microwave near-field distribution in sodium chloride and glucose aqueous solutions by a thermo-elastic optical indicator microscope

Radio-Frequency Biosensors for Real-Time and Continuous Glucose Detection

Flexible biomedical RF sensors to quantify the purity of medical grade glycerol and glucose concentrations

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