ArticleBiomicrofluidics2011
Refinement of the theory for extracting cell dielectric properties from dielectrophoresis and electrorotation experiments.
Article in Biomicrofluidics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Microfluidic-based electrically driven particle manipulation techniques for biomedical applications.RSC advances · 2025Review
- Characterization of Extra-Cellular Vesicle Dielectrophoresis and Estimation of Its Electric Properties.Sensors (Basel, Switzerland) · 2022Article
- On-chip integrated optical stretching and electrorotation enabling single-cell biophysical analysis.Microsystems & nanoengineering · 2020Article
- New insights into anhydrobiosis using cellular dielectrophoresis-based characterization.Biomicrofluidics · 2019Article
- Frequency-Modulated Wave Dielectrophoresis of Vesicles And Cells: Periodic U-Turns at the Crossover Frequency.Nanoscale research letters · 2018Article
- Microfluidic Sorting of Cells by Viability Based on Differences in Cell Stiffness.Scientific reports · 2017Article
- Estimation of the physical properties of neurons and glial cells using dielectrophoresis crossover frequency.Journal of biological physics · 2016Article
- Microfluidic impedance flow cytometry enabling high-throughput single-cell electrical property characterization.International journal of molecular sciences · 2015Review
- Distinctive translational and self-rotational motion of lymphoma cells in an optically induced non-rotational alternating current electric field.Biomicrofluidics · 2015Article
- Microfluidic impedance cytometry of tumour cells in blood.Biomicrofluidics · 2014Article
- Characterization of microfluidic shear-dependent epithelial cell adhesion molecule immunocapture and enrichment of pancreatic cancer cells from blood cells with dielectrophoresis.Biomicrofluidics · 2014Article
- Cell surface area and membrane folding in glioblastoma cell lines differing in PTEN and p53 status.PloS one · 2014Article
- Systematic dielectrophoretic analysis of the Ara-C-induced NB4 cell apoptosis combined with gene expression profiling.International journal of nanomedicine · 2013Article
- Dielectric analysis and multi-cell electrofusion of the yeast Pichia pastoris for electrophysiological studies.The Journal of membrane biology · 2012Article
- Microfluidic impedance spectroscopy as a tool for quantitative biology and biotechnology.Biomicrofluidics · 2012Article
- Microfluidic separation of live and dead yeast cells using reservoir-based dielectrophoresis.Biomicrofluidics · 2012Article
- Biomarker-free dielectrophoretic sorting of differentiating myoblast multipotent progenitor cells and their membrane analysis by Raman spectroscopy.Biomicrofluidics · 2012Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A modified theory is proposed for extracting cell dielectric properties from the peak frequency measurement of electrorotation (ER) and the crossover frequency measurement of dielectrophoresis (DEP). Current theory in the literature is based on the low frequency (DC) approximations for the equivalent cell permittivity and conductivity, which are valid when the measurements are performed in a medium with conductivity less than 1 mS/m. The present theory extracts the cell properties through optimizing an expression for the medium conductivity in terms of the peak ER, or DEP crossover, frequency according to its definition using full expressions of equivalent cell permittivity and conductivity. Various levels of approximation of the theory are proposed and discussed through a scaling analysis. The present theory can extract both membrane and interior properties from the low and the high peak ER, or DEP crossover, frequencies for any medium conductivity provided the peak ER, or DEP crossover, frequency exists. It can be reduced to the linear theory for the low peak ER and DEP crossover frequencies in the literature when the medium conductivity is less than 10 mS/m. However, we can determine the membrane capacitance and conductance via the slope and intercept, respectively, of the straight line fitting of the ER peak and DEP frequency against medium conductivity data according to the linear theory only when the intercept dominates the experimental uncertainty, which occurs when the medium conductivity is less than 1 mS/m in practice.
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