Quartz Crystal Microbalance with Approximately Uniform Sensitivity Distribution

Huang, Xianhe; Bai, Qingsong; Pan, Wei; Hu, Jianguo

doi:10.1021/acs.analchem.8b01529

Cited by 24 publications

(13 citation statements)

References 28 publications

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“…To solve this problem, Josse et al proposed a single-ring electrode structure whose mass sensitivity distribution presents a bimodal curve . Huang et al designed dot-ring and double-ring QCMs to improve the uniformity of the mass sensitivity distribution. , …”

Section: Introductionmentioning

confidence: 99%

Uniform Mass Sensitivity Distribution of Elliptically Designed Electrodes Based on a Quartz Crystal Microbalance

Jiang

Tang

2021

ACS Omega

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Uniformization of mass sensitivity distribution is conducive to the application of the quartz crystal microbalance (QCM) in some fields. However, the sensitivity of the QCM sensor surface perpendicular to the displacement direction is higher that of the displacement direction in the mass sensitivity distribution of ring and double-ring QCMs, which leads to poor reproducibility of the sensor. Considering the effect of the electrode structure on the mass sensitivity distribution, we found that for ring- and double-ring-type QCMs, when the elliptical single ring and double-ring electrode structures are combined, an approximately uniform mass sensitivity can be obtained in all directions. Therefore, this study proposes the elliptical single-ring and elliptical double-ring electrode structure design. Through theoretical calculations and three-dimensional finite element analysis verification, a systematic investigation is carried out to quantify the effect of the ratio of the minor axis to the major axis of the elliptical electrode on the mass sensitivity distribution in different directions, and the optimal ratio is found to be 0.8. Comparing the mass sensitivity of the new type of electrodes and the original electrodes, the result shows that the mass sensitivity distribution of the elliptical double-ring electrode structure is more uniform. Hence, these specially designed electrodes are conducive to improving the repeatability.

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Section: Introductionmentioning

confidence: 99%

Uniform Mass Sensitivity Distribution of Elliptically Designed Electrodes Based on a Quartz Crystal Microbalance

Jiang

Tang

2021

ACS Omega

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“…The nonuniformity of QCR's mass sensitivity across its diameter often limits its quantitative reproducibility and thereby the limit of detection. Improvement in uniformity of mass sensitivity across the QCR diameter, for example through using a ring electrode with optimised inner and outer radii, will be important for improved quantitative accuracy and limit of detection of this QCR-nanoMIP sensor (Huang et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Direct detection of small molecules using a nano-molecular imprinted polymer receptor and a quartz crystal resonator driven at a fixed frequency and amplitude

Guha

Ahmad

Guerreiro³

et al. 2020

Biosensors and Bioelectronics

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“…According to previous works, the mass sensitivity of QCM exhibits a Gaussian distribution, which can be calculated by the following formula [ 13 , 18 , 19 ],

where

and

are the mass sensitivity distribution and Sauerbrey sensitivity constant, respectively.

and

are the distance from the electrode center and the particle displacement function, respectively.…”

Section: Theorymentioning

confidence: 99%

Analysis of the Effect of Electrode Materials on the Sensitivity of Quartz Crystal Microbalance

et al. 2022

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This paper investigated the effect of electrode materials on the performance of quartz crystal microbalance (QCM) sensors by means of theoretical calculation, experiment, and finite element analysis methods. First, we calculated the particle displacement amplitude and thus obtained the mass sensitivity function distribution of QCMs with gold, silver and aluminum electrodes, and found that the QCM with the gold electrode has the highest mass sensitivity at the center of the electrode. Then, we tested the humidity-sensing performance of QCMs with gold, silver, and aluminum electrodes using graphene oxide (GO) as the sensitive material, and found that the QCM with the gold electrode has higher humidity sensitivity. Finally, we used the finite element analysis software COMSOL Multiphysics to simulate the specific electrode material parameters that affect the sensitivity of the QCMs. The simulation results show that the density and Young’s modulus of the electrode material parameters mainly affect the sensitivity. The results of this paper are instructive for optimizing QCM sensor performance and improving the capability of QCM quantitative analysis.

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Quartz Crystal Microbalance with Approximately Uniform Sensitivity Distribution

Cited by 24 publications

References 28 publications

Uniform Mass Sensitivity Distribution of Elliptically Designed Electrodes Based on a Quartz Crystal Microbalance

Uniform Mass Sensitivity Distribution of Elliptically Designed Electrodes Based on a Quartz Crystal Microbalance

Direct detection of small molecules using a nano-molecular imprinted polymer receptor and a quartz crystal resonator driven at a fixed frequency and amplitude

Analysis of the Effect of Electrode Materials on the Sensitivity of Quartz Crystal Microbalance

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