Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Dielectric Polarization in a Capacitor

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Rapid antimicrobial susceptibility testing directly from positive blood cultures.

The Analyst·2026

Same author

Trapping of Micro- and Nanoparticles within Microfluidic Constrictions in AC Electric Fields.

Analytical chemistry·2025

Same author

Single-cell impedance spectroscopy of nucleated cells.

Lab on a chip·2025

Same author

Single-cell electro-mechanical shear flow deformability cytometry.

Microsystems & nanoengineering·2024

Same author

A combined electro-optical deformability micro-cytometer.

RSC advances·2024

Same author

A Novel Wearable Sensor for Measuring Respiration Continuously and in Real Time.

Sensors (Basel, Switzerland)·2024

Same journal

A Point-of-Care System for the Quantification of Small-Molecule Drugs in Blood.

ACS sensors·2026

Same journal

A Fungal Bioluminescent Pathway (FBP)-Based Yeast Biosensor for Caffeic Acid Quantification in Food and Beverages.

ACS sensors·2026

Same journal

Additively Manufactured <i>in planta</i> Integrated Microneedle-Microfluidic Sensing: Nondestructive Electrochemical Tracking of Glucose and Water Stress in Agricultural Crop Plants.

ACS sensors·2026

Same journal

Printable Core-Shell Multifunctional Particle for Light-Enhanced Nanomolar-Level Testosterone Point-of-Care Monitoring.

ACS sensors·2026

Same journal

Robust and Sensitive Electrochemical Biosensor Based on Cascade Interface Engineering for piRNA Detection in Breast Cancer Diagnosis.

ACS sensors·2026

Same journal

CRISPR-Cas-Based Platform for Single-Step Quantification of Monoclonal Antibodies at Point-of-Care.

ACS sensors·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 29, 2025

Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper

Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper

Published on: October 4, 2019

High-Speed Single-Cell Dielectric Spectroscopy.

Daniel Spencer¹, Hywel Morgan¹

¹Electronics and Computer Science, and Institute of Life Sciences University of Southampton , Southampton SO17 1BJ , U.K.

|February 5, 2020

Summary

This summary is machine-generated.

This study introduces multifrequency impedance cytometry to measure intrinsic electrical properties of single cells. The new method enables high-throughput analysis of cell conductivity and permittivity, advancing cell characterization.

Keywords:

cytometry dielectric spectroscopy impedance analysis microfluidics single-cell analysis

More Related Videos

Scanning-probe Single-electron Capacitance Spectroscopy

Scanning-probe Single-electron Capacitance Spectroscopy

Published on: July 30, 2013

Dielectric RheoSANS — Simultaneous Interrogation of Impedance, Rheology and Small Angle Neutron Scattering of Complex Fluids

Dielectric RheoSANS — Simultaneous Interrogation of Impedance, Rheology and Small Angle Neutron Scattering of Complex Fluids

Published on: April 10, 2017

Related Experiment Videos

Last Updated: Dec 29, 2025

Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper

Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper

Published on: October 4, 2019

Scanning-probe Single-electron Capacitance Spectroscopy

Scanning-probe Single-electron Capacitance Spectroscopy

Published on: July 30, 2013

Dielectric RheoSANS — Simultaneous Interrogation of Impedance, Rheology and Small Angle Neutron Scattering of Complex Fluids

Dielectric RheoSANS — Simultaneous Interrogation of Impedance, Rheology and Small Angle Neutron Scattering of Complex Fluids

Published on: April 10, 2017

Area of Science:

Biophysics
Cell Biology
Electrical Engineering

Background:

Single-cell impedance cytometry is a label-free technique for analyzing cell electrical properties.
Current methods are limited to low-frequency measurements and cannot determine intrinsic cell properties.

Purpose of the Study:

To develop a high-throughput method for determining complete intrinsic electrical properties of single cells.
To overcome the limitations of current single-cell impedance cytometry techniques.

Main Methods:

Utilized multifrequency impedance measurements for single-cell analysis.
Applied the technique to measure electrical properties of red blood cells and red cell ghosts.

Main Results:

Successfully determined the complete intrinsic electrical properties of thousands of single cells at high throughput.
Derived unique conductivity and permittivity values for the membrane and cytoplasm of individual cells.

Conclusions:

Multifrequency impedance cytometry provides a comprehensive approach to characterizing single-cell electrical properties.
This method offers a significant advancement for cell subpopulation differentiation and intrinsic property analysis.