Non-Invasive Fluidic Glucose Detection Based on Dual Microwave Complementary Split Ring Resonators With a Switching Circuit for Environmental Effect Elimination

Jang, Chorom; Park, Jin Kwan; Lee, Hee Jo; Yun, Gi-Ho; Yook, Jong Gwan

doi:10.1109/jsen.2020.2984779

Cited by 81 publications

(39 citation statements)

References 37 publications

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“…In line with previous work by the authors [ 29 , 31 , 33 ], a linear relationship with a sensitivity of 0.00026 dB/(mg/dl) was observed for the RF mm-wave data, Figure 1 b, between the transmission S 21 and the amount of glucose concentration in the samples. This sensitivity is comparable to the sensitivity of other transmission-based RF systems at lower frequencies, which can range between 0.00008–0.00140 dB/(mg/dl) [ 29 , 34 , 35 , 36 , 37 ]. This approximately linear relationship is also evident for the NIR transmittance data, with a sensitivity of 0.00019%/(mg/dl) ( Figure 1 a).…”

Section: Resultssupporting

confidence: 56%

Enhancing the Accuracy of Non-Invasive Glucose Sensing in Aqueous Solutions Using Combined Millimeter Wave and Near Infrared Transmission

Cano-Garcia

Kshirsagar

Pricci

et al. 2021

Sensors

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We reported measurement results relating to non-invasive glucose sensing using a novel multiwavelength approach that combines radio frequency and near infrared signals in transmission through aqueous glucose-loaded solutions. Data were collected simultaneously in the 37–39 GHz and 900–1800 nm electromagnetic bands. We successfully detected changes in the glucose solutions with varying glucose concentrations between 80 and 5000 mg/dl. The measurements showed for the first time that, compared to single modality systems, greater accuracy on glucose level prediction can be achieved when combining transmission data from these distinct electromagnetic bands, boosted by machine learning algorithms.

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Section: Resultssupporting

confidence: 56%

Enhancing the Accuracy of Non-Invasive Glucose Sensing in Aqueous Solutions Using Combined Millimeter Wave and Near Infrared Transmission

Cano-Garcia

Kshirsagar

Pricci

et al. 2021

Sensors

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“…First, microwave sensors are suitable for noninvasive, nondestructive and noncontact measurements [8]- [10]. Moreover, their size can be reduced by increasing the operating frequency, and they can be easily incorporated into commercial mobile communication systems [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Sensitive Relative Humidity Monitoring Sensor Based on Microwave Active Resonator With PEDOT:PSS

et al. 2020

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In this paper, a relative humidity monitoring sensor based on an active resonator with PEDOT:PSS is studied in the microwave regime. The proposed active resonator is patterned on a printed circuit board and excited by electromagnetic field coupling. The active resonator consists of two parts: a passive core resonator and an active circuit. The passive core resonator senses the humidity via the PEDOT:PSS conducting polymer film, which is located in the area of the passive core resonator with the strongest electric field. The active circuit compensates for the loss of the passive core resonator to enhance the quality factor and thus improve the sensitivity of the relative humidity sensor. By combining the passive core resonator with the active circuit, the active resonator exhibits a high quality factor (2887), which is 90 times that of the passive core resonator alone. Moreover, the sensitivity of the proposed humidity sensor is improved when using the active resonator. To verify the performance of the proposed humidity sensor, a commercial sensor is placed alongside the proposed sensor in a well-controlled environment chamber. According to the experimental results, as the relative humidity increases, the transmission coefficient (S 21 ) increases, while the resonance frequency decreases. As a result, the sensor exhibits an increase in S 21 of 3.58 dB and a decrease in the resonance frequency of 8.85 MHz when the relative humidity changes from 30% to 85%.

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“…Our research group developed an improved glucose sensor with environmental effect elimination [ 104 ]. The effects of both temperature and relative humidity on the performance of the sensor were analyzed mathematically.…”

Section: Radio-frequency/microwave-based Glucose Sensorsmentioning

confidence: 99%

“…( b ) Variation in the transmission coefficient of the sensor as a function of the glucose concentration after environmental effect elimination. (Reprinted with permission from [ 104 ]; published by IEEE, 2020.)…”

Section: Figurementioning

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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Non-Invasive Fluidic Glucose Detection Based on Dual Microwave Complementary Split Ring Resonators With a Switching Circuit for Environmental Effect Elimination

Cited by 81 publications

References 37 publications

Enhancing the Accuracy of Non-Invasive Glucose Sensing in Aqueous Solutions Using Combined Millimeter Wave and Near Infrared Transmission

Enhancing the Accuracy of Non-Invasive Glucose Sensing in Aqueous Solutions Using Combined Millimeter Wave and Near Infrared Transmission

Sensitive Relative Humidity Monitoring Sensor Based on Microwave Active Resonator With PEDOT:PSS

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

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