Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Induced Electric Dipoles01:28

Induced Electric Dipoles

4.4K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
4.4K
Electric Dipoles and Dipole Moment01:30

Electric Dipoles and Dipole Moment

5.4K
Consider two charges of equal magnitude but opposite signs. If they cannot be separated by an external electric field, the system is called a permanent dipole. For example, the water molecule is a dipole, making it a good solvent.
Theoretically, studying electric dipoles leads to understanding why the resultant electric forces around us are weak. Since electric forces are strong, remnant net charges are rare. Hence, the interaction between dipoles helps us understand electrical interactions in...
5.4K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

470
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
470
Molecular Geometry and Dipole Moments02:36

Molecular Geometry and Dipole Moments

13.8K
The VSEPR theory can be used to determine the electron pair geometries and molecular structures as follows:
13.8K
Mechanisms of Membrane-bending01:15

Mechanisms of Membrane-bending

2.8K
The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
2.8K
Membrane Fluidity01:23

Membrane Fluidity

155.6K
Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
155.6K

You might also read

Related Articles

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

Sort by
Same author

Arterial switch operation after left ventricular retraining with ductal stent: Our experience.

Annals of pediatric cardiology·2026
Same author

Mutational scanning reveals substrate-assisted autoregulation of the WNT destruction complex.

Nature genetics·2026
Same author

Design principles of a membrane-spanning ubiquitin ligase.

Molecular cell·2026
Same author

A Comprehensive Approach to Monitor Endocytosis and Trafficking of G Protein-Coupled Receptors: Tools for Exploring Receptor-Lipid Interaction.

Methods in molecular biology (Clifton, N.J.)·2026
Same author

Multiscale Simulation Approaches to Probe Lipid Interactions of G Protein-Coupled Receptors.

Methods in molecular biology (Clifton, N.J.)·2026
Same author

Prospective observational study comparing the outcomes of fenestrated and non-fenestrated extracardiac Fontan procedure.

Cardiology in the young·2026

Related Experiment Video

Updated: Sep 8, 2025

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

2.5K

Membrane Dipole Potential: An Emerging Approach to Explore Membrane Organization and Function.

Parijat Sarkar1, Amitabha Chattopadhyay1

  • 1CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500 007, India.

The Journal of Physical Chemistry. B
|June 13, 2022
PubMed
Summary

This study explores measuring membrane dipole potential using electrochromic fluorescent probes. This technique offers new ways to study cell biology and understand membrane lipid-protein interactions.

More Related Videos

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy
10:49

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy

Published on: March 5, 2017

13.4K
Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions
10:02

Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions

Published on: May 27, 2021

4.1K

Related Experiment Videos

Last Updated: Sep 8, 2025

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

2.5K
Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy
10:49

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy

Published on: March 5, 2017

13.4K
Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions
10:02

Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions

Published on: May 27, 2021

4.1K

Area of Science:

  • Cell Biology
  • Biophysics
  • Membrane Biophysics

Background:

  • Biological membranes compartmentalize cells and organelles.
  • Membrane dipole potential arises from aligned dipoles within the membrane interface.
  • Understanding membrane potential is crucial for cellular function.

Purpose of the Study:

  • To focus on measuring membrane dipole potential using electrochromic fluorescent probes.
  • To highlight applications of this measurement technique.
  • To introduce ratiometric fluorescence microscopic imaging for cellular membrane dipole potential measurement.

Main Methods:

  • Utilizing electrochromic fluorescent probes for dipole potential measurement.
  • Employing ratiometric fluorescence microscopic imaging.
  • Applying these methods to cellular membranes.

Main Results:

  • Demonstrated a method for measuring membrane dipole potential.
  • Highlighted potential applications in cell biology.
  • Showcased a ratiometric fluorescence imaging technique.

Conclusions:

  • Membrane dipole potential measurement using these probes is feasible.
  • The technique can address challenging cell biology problems.
  • Dipole potential could be a valuable tool for studying membrane organization and function.