A Microfluidic Sensor Dedicated to Microwave Dielectric Spectroscopy of Liquids Medium and Flowing Colloidal Suspension

Landoulsi, Alaeddine; Leroy, Jonathan; Dalmay, Claire; Pothier, A.; Bessaudou, Annie; Blondy, Pierre

doi:10.1016/j.proeng.2014.11.418

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…These systems are revolutionary in life sciences and industry [ 2 ] thanks to low reagent consumption, high sensitivity, rapid detection, integration capability, and being highly portable [ 3 ]. Such systems found many different applications, such as synthesis of nanofiber and nanoparticles [ 4 , 5 ], electrochemical/biochemical sensors [ 6 ], or cell/molecular biology [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Microfluidic Tesla Valve Employing Femtosecond Bursts

Andriukaitis

Vargalis²,

Šerpytis

et al. 2022

Micromachines

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Expansion of the microfluidics field dictates the necessity to constantly improve technologies used to produce such systems. One of the approaches which are used more and more is femtosecond (fs) direct laser writing (DLW). The subtractive model of DLW allows for directly producing microfluidic channels via ablation in an extremely simple and cost-effective manner. However, channel surface roughens are always a concern when direct fs ablation is used, as it normally yields an RMS value in the range of a few µm. One solution to improve it is the usage of fs bursts. Thus, in this work, we show how fs burst mode ablation can be optimized to achieve sub-µm surface roughness in glass channel fabrication. It is done without compromising on manufacturing throughput. Furthermore, we show that a simple and cost-effective channel sealing methodology of thermal bonding can be employed. Together, it allows for production functional Tesla valves, which are tested. Demonstrated capabilities are discussed.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Microfluidic Tesla Valve Employing Femtosecond Bursts

Andriukaitis

Vargalis²,

Šerpytis

et al. 2022

Micromachines

View full text Add to dashboard Cite

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“…The second application consists of the enhancement of chemical reactions, e.g., the synthesis of nanoparticles [12]. The last domain of application is the characterization of the electrical parameters of various (bio)chemical substances that flow through a microchannel [13,14,15]. This last method can also be used in the process of characterization of various (bio)chemical compounds.…”

Section: Introductionmentioning

confidence: 99%

Monolithic Microwave-Microfluidic Sensors Made with Low Temperature Co-Fired Ceramic (LTCC) Technology

Malecha

Jasińska

Grytsko

et al. 2019

Sensors

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This paper compares two types of microfluidic sensors that are designed for operation in ISM (Industrial, Scientific, Medical) bands at microwave frequencies of 2.45 GHz and 5.8 GHz. In the case of the first sensor, the principle of operation is based on the resonance phenomenon in a microwave circuit filled with a test sample. The second sensor is based on the interferometric principle and makes use of the superposition of two coherent microwave signals, where only one goes through a test sample. Both sensors are monolithic structures fabricated using low temperature co-fired ceramics (LTCCs). The LTCC-based microwave-microfluidic sensor properties are examined and compared by measuring their responses for various concentrations of two types of test fluids: one is a mixture of water/ethanol, and the other is dopamine dissolved in a buffer solution. The experiments show a linear response for the LTCC-based microwave-microfluidic sensors as a function of the concentration of the components in both test fluids.

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