Insulator-based dielectrophoresis for fouling suppression in submerged membranes bioreactors: Impact of insulators shape and dimensions

Hawari, Alaa H.; Larbi, Bouthaina; Alkhatib, Amira; Du, Fei; Baune, Michael; Thöming, Jorg

doi:10.1016/j.seppur.2018.12.084

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…In our previous work, we utilized the DEP technique to place SrTiO 3 nanoparticles between two electrodes and measure their electrical properties [17]. In the biological science field, DEP has also been utilized for trapping microorganisms [18,19], cell separation and characterization [1,[20][21][22][23], preventing membrane fouling in bioreactors [24], and bacterial isolation [25]. Even though the technique is useful, and many studies have been reported, the conventional DEP technique has a major constraint: it requires attaching wires directly to the electrodes, which may limit some applications.…”

Section: Introductionmentioning

confidence: 99%

Wirelessly powered dielectrophoresis of metal oxide particles using spark‐gap Tesla coil

et al. 2020

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Wirelessly powered dielectrophoresis (DEP) of metal oxide particles was performed using a spark‐gap Tesla coil (TC). The main contribution of this work is the simplification of the conventional DEP setup that requires attaching wires directly to the electrodes. Wireless power from the TC generates a high output frequency and voltage, which corresponds to that used for the DEP. Therefore, a spark‐gap TC was built and utilized to conduct the DEP process. Metal oxides (ZnO and Fe2O3) were used as targets for the assembly. The results showed that the wirelessly powered DEP technique via a TC was successful in assembling the metal oxide particles. Positive and negative DEP phenomena were observed. Positive DEP occurred during ZnO assembly, making particles chain grow 0.92 mm toward the sparks within 60 s. Negative DEP was observed during Fe2O3 assembly, where the repulsion of particles formed a void around the sparks with a 1.45 mm radius. The mechanism of this wireless DEP system is discussed.

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Section: Introductionmentioning

confidence: 99%

Wirelessly powered dielectrophoresis of metal oxide particles using spark‐gap Tesla coil

et al. 2020

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Dielectrophoresis: Measurement technologies and auxiliary sensing applications

Hu,

Ji,

Chen

et al. 2024

Electrophoresis

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Dielectrophoresis (DEP), which arises from the interaction between dielectric particles and an aqueous solution in a nonuniform electric field, contributes to the manipulation of nano and microparticles in many fields, including colloid physics, analytical chemistry, molecular biology, clinical medicine, and pharmaceutics. The measurement of the DEP force could provide a more complete solution for verifying current classical DEP theories. This review reports various imaging, fluidic, optical, and mechanical approaches for measuring the DEP forces at different amplitudes and frequencies. The integration of DEP technology into sensors enables fast response, high sensitivity, precise discrimination, and label‐free detection of proteins, bacteria, colloidal particles, and cells. Therefore, this review provides an in‐depth overview of DEP‐based fabrication and measurements. Depending on the measurement requirements, DEP manipulation can be classified into assistance and integration approaches to improve sensor performance. To this end, an overview is dedicated to developing the concept of trapping‐on‐sensing, improving its structure and performance, and realizing fully DEP‐assisted lab‐on‐a‐chip systems.

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A microfluidic device to separate high-quality plasma from undiluted whole blood sample using an enhanced gravitational sedimentation mechanism

Bakhtiaridoost

Habibiyan

Ghafoorifard

2023

Analytica Chimica Acta

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Insulator-based dielectrophoresis for fouling suppression in submerged membranes bioreactors: Impact of insulators shape and dimensions

Cited by 6 publications

References 29 publications

Wirelessly powered dielectrophoresis of metal oxide particles using spark‐gap Tesla coil

Wirelessly powered dielectrophoresis of metal oxide particles using spark‐gap Tesla coil

Dielectrophoresis: Measurement technologies and auxiliary sensing applications

A microfluidic device to separate high-quality plasma from undiluted whole blood sample using an enhanced gravitational sedimentation mechanism

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