This paper reports on the performance of a sub-THz liquid sensor tool coupled to a microfluidic platform. Non-invasive, non-destructive and on-line measurements are demonstrated for the determination of ethanol concentration and for controlling via micromixer device. We have developed a label-free chemical sensing methodology coupling a sub-terahertz sensor technology in microfluidic devices fabricated on glass and polydimethylsiloxane. The concept of sensor in micromixer applications operating at 60 GHz for known etha-nol concentration ranging 0% to 100%, with a corresponding dynamic range of 2.79dB. The sensor allowed establishing the correlation between the mass flow rate and the ethanol concen-tration in the microfluidic system, where two-stream lines form the mixture in laminar flows, with Reynolds number < 13.54 and Peclet number > 25700. We demonstrated on-line sensing and linear control of ethanol concentration on demand with a small variation of 0.32% (v/v) between measured and required ethanol concentration.
Moraes Da Silva, S, Stiens, J, Moshkalev, S, Swart, JW, Lacerda de Orio, R, Matvejev, V, Zhang, Y, Vandermeiren, W & De Tandt, C 2018, 'Microfluidic devices on glass for liquid mixtures concentration with coupled THz sensor', Journal of Integrated Circuits and Systems, vol. 13, no. 2, pp. 1-5. https://doi.org/10.29292/jics.v13i2.10
Moraes Da Silva, S., Stiens, J., Moshkalev, S., Swart, J. W., Lacerda de Orio, R., Matvejev, V., Zhang, Y., Vandermeiren, W., & De Tandt, C. (2018). Microfluidic devices on glass for liquid mixtures concentration with coupled THz sensor. Journal of Integrated Circuits and Systems, 13(2), 1-5. https://doi.org/10.29292/jics.v13i2.10
@article{ea6eba5a0c254c2aab470f51e23624b4,
title = "Microfluidic devices on glass for liquid mixtures concentration with coupled THz sensor",
abstract = "This paper reports on the performance of a sub-THz liquid sensor tool coupled to a microfluidic platform. Non-invasive, non-destructive and on-line measurements are demonstrated for the determination of ethanol concentration and for controlling via micromixer device. We have developed a label-free chemical sensing methodology coupling a sub-terahertz sensor technology in microfluidic devices fabricated on glass and polydimethylsiloxane. The concept of sensor in micromixer applications operating at 60 GHz for known etha-nol concentration ranging 0% to 100%, with a corresponding dynamic range of 2.79dB. The sensor allowed establishing the correlation between the mass flow rate and the ethanol concen-tration in the microfluidic system, where two-stream lines form the mixture in laminar flows, with Reynolds number < 13.54 and Peclet number > 25700. We demonstrated on-line sensing and linear control of ethanol concentration on demand with a small variation of 0.32% (v/v) between measured and required ethanol concentration.",
keywords = "label-free sensing, sub-THz, microfluidics, glass and polydimethylsiloxane., concentration on demand, alcohol",
author = "{Moraes Da Silva}, Salomao and Johan Stiens and Stanislav Moshkalev and J.W. Swart and {Lacerda de Orio}, Roberto and Vladimir Matvejev and Yuchen Zhang and Werner Vandermeiren and {De Tandt}, Cathleen",
year = "2018",
month = aug,
day = "27",
doi = "10.29292/jics.v13i2.10",
language = "English",
volume = "13",
pages = "1--5",
journal = "Journal of Integrated Circuits and Systems",
issn = "1807-1953",
number = "2",
}