Dielectric properties of glucose in bulk aqueous solutions: Influence of electrode polarization and modeling

Yoon, Gilwon

doi:10.1016/j.bios.2010.10.009

Cited by 56 publications

(25 citation statements)

References 34 publications

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“…Without any chemical functionalization of graphene, the transfer characteristics (source-drain current I DS as a function of gate voltage V GS ) measured at the different glucose concentrations were almost indistinguishable (Figure 2a). This suggested that glucose, at the selected concentration range, did not either interact with graphene or vary the capacitance of the double layer, in agreement with previous related studies 19, 21 .…”

supporting

confidence: 91%

A graphene-based affinity nanosensor for detection of low-charge and low-molecular-weight molecules

et al. 2016

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supporting

confidence: 91%

A graphene-based affinity nanosensor for detection of low-charge and low-molecular-weight molecules

et al. 2016

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“…Other important observation is that the impedance behaviour is dominated by the NaCl as in [19], even when in our experiments the concentration of Albumin is one order of magnitude major tan the NaCl added.…”

Section: Discussionmentioning

confidence: 81%

Using the best linear approximation as a first step to a new non-invasive glucose measurement

Olarte

Moer

Barbé

et al. 2012

2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings

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In this paper an approach to develop a non-invasive glucose measured system based on the best linear approximation (BLA) and electrical impedance spectroscopy (EIS) is presented. In order to test the advantages of the technique, three blood components at reference blood concentration are tested. In these solutions the level of glucose was varied from normal to pathological concentrations. The results show the ability of BLA-EIS to detect the glucose changes by combining the amplitude and phase behavior of the impedance.

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“…Meanwhile, magnitudes of the reflection coefficient show an increasing variation ranging from −29.47 dB to −12.18 dB. The reasons for this can be explained as follows: the viscosity of DI water is lower than that of glucose solution and PBS, but conversely, the effective permittivity of DI water is greater than air, glucose solution, and PBS, resulting in the maximum frequency shift after dripping water onto the chip [51]. Then, a response experiment with different concentrations of glucose ranging from 50 mg/dL up to 500 mg/dL is explored.…”

Section: Responses Of Biosensormentioning

confidence: 99%

Reusable, Non-Invasive, and Ultrafast Radio Frequency Biosensor Based on Optimized Integrated Passive Device Fabrication Process for Quantitative Detection of Glucose Levels

Yao

Yue

et al. 2020

Sensors

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The increase in the number of people suffering diabetes has been the driving force behind the development of glucose sensors to overcome the current testing shortcomings. In this work, a reusable, non-invasive and ultrafast radio frequency biosensor based on optimized integrated passive device fabrication process for quantitative detection of glucose level was developed. With the aid of the novel biosensor design with hammer-shaped capacitors for carrying out detection, both the resonance frequency and magnitude of reflection coefficient can be applied to map the different glucose levels. Meanwhile, the corresponding fabrication process was developed, providing an approach for achieving quantitative detection and a structure without metal-insulator-metal type capacitor that realizes low cost and high reliability. To enhance the sensitivity of biosensor, a 3-min dry etching treatment based on chlorine/argon-based plasma was implemented for realizing hydrophilicity of capacitor surface to ensure that the biosensor can be touched rapidly with glucose. Based on above implementation, a non-invasive biosensor having an ultrafast response time of superior to 0.85 s, ultralow LOD of 8.01 mg/dL and excellent reusability verified through five sets of measurements are realized. The proposed approaches are not limited the development of a stable and accurate platform for the detection of glucose levels but also presents a scheme toward the detection of glucose levels in human serum.

show abstract

Dielectric properties of glucose in bulk aqueous solutions: Influence of electrode polarization and modeling

Cited by 56 publications

References 34 publications

A graphene-based affinity nanosensor for detection of low-charge and low-molecular-weight molecules

A graphene-based affinity nanosensor for detection of low-charge and low-molecular-weight molecules

Using the best linear approximation as a first step to a new non-invasive glucose measurement

Reusable, Non-Invasive, and Ultrafast Radio Frequency Biosensor Based on Optimized Integrated Passive Device Fabrication Process for Quantitative Detection of Glucose Levels

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