ArticleScientific reports2018
Rapid and selective concentration of bacteria, viruses, and proteins using alternating current signal superimposition on two coplanar electrodes.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Correlation of dielectrophoretic crossover frequency with optical density and plate counts for assessing Staphylococcus aureus concentration analysis.Scientific reports · 2026Article
- Integrated microfluidic biosensors: shaping the future of quantitative life sciences and on-chip molecular diagnostics.Lab on a chip · 2026Review
- Protein Manipulation via Dielectrophoresis: Theoretical Principles and Emerging Microfluidic Platforms.Micromachines · 2025Review
- Design and Fabrication of Microelectrodes for Dielectrophoresis and Electroosmosis in Microsystems for Bio-Applications.Micromachines · 2025Review
- High-Frequency Dielectrophoresis Reveals That Distinct Bio-Electric Signatures of Colorectal Cancer Cells Depend on Ploidy and Nuclear Volume.Micromachines · 2023Article
- Nanogap Electrode-Enabled Versatile Electrokinetic Manipulation of Nanometric Species in Fluids.Biosensors · 2022Article
- Optically-assisted thermophoretic reversible assembly of colloidal particles and E. coli using graphene oxide microstructures.Scientific reports · 2022Article
- Recent advancements in the measurement of pathogenic airborne viruses.Journal of hazardous materials · 2021Review
- Microfluidic Isolation and Enrichment of Nanoparticles.ACS nano · 2020Review
- A Prominent Cell Manipulation Technique in BioMEMS: Dielectrophoresis.Micromachines · 2020Review
- AC electrokinetic immobilization of organic dye molecules.Analytical and bioanalytical chemistry · 2020Article
- Protein Dielectrophoresis: I. Status of Experiments and an Empirical Theory.Micromachines · 2020Article
- High-Sensitivity in Dielectrophoresis Separations.Micromachines · 2020Review
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5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Dielectrophoresis (DEP) is usually effective close to the electrode surface. Several techniques have been developed to overcome its drawbacks and to enhance dielectrophoretic particle capture. Here we present a simple technique of superimposing alternating current DEP (high-frequency signals) and electroosmosis (EO; low-frequency signals) between two coplanar electrodes (gap: 25 μm) using a lab-made voltage adder for rapid and selective concentration of bacteria, viruses, and proteins, where we controlled the voltages and frequencies of DEP and EO separately. This signal superimposition technique enhanced bacterial capture (Escherichia coli K-12 against 1-μm-diameter polystyrene beads) more selectively (>99%) and rapidly (~30 s) at lower DEP (5 Vpp) and EO (1.2 Vpp) potentials than those used in the conventional DEP capture studies. Nanometer-sized MS2 viruses and troponin I antibody proteins were also concentrated using the superimposed signals, and significantly more MS2 and cTnI-Ab were captured using the superimposed signals than the DEP (10 Vpp) or EO (2 Vpp) signals alone (p < 0.035) between the two coplanar electrodes and at a short exposure time (1 min). This technique has several advantages, such as simplicity and low cost of electrode fabrication, rapid and large collection without electrolysis.
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