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

Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

672
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,...
672

You might also read

Related Articles

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

Sort by
Same author

A long-chain heparan sulfate capture mechanism directs paracrine GDNF-GFRα1 signalling through RET.

bioRxiv : the preprint server for biology·2026
Same author

Engineered Coiled-Coils Convert Cholera Toxin B-Pentamers into Programmable Membrane Fusogens.

ACS nano·2026
Same author

Self-Consistent Field Analysis of Segregative Aqueous Dextran─Poly(ethylene glycol) Solutions: (3) Polymer-Induced Loop-to-Bridge and Capillary Bridge Forces.

The journal of physical chemistry. B·2026
Same author

Compressed asymmetric polymer brushes exhibit a symmetric interpenetration zone.

Physical chemistry chemical physics : PCCP·2026
Same author

Self-Consistent Field Modeling of Bottle-Brush with Aggrecan-like Side Chain.

Biomimetics (Basel, Switzerland)·2025
Same author

Self-Consistent Field Analysis of Segregative Aqueous Dextran-Polyethylene Glycol Solutions: (2) Adsorption and Wetting.

The journal of physical chemistry. B·2025

Related Experiment Video

Updated: Dec 24, 2025

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.3K

Electroresponsive Polyelectrolyte Brushes Studied by Self-Consistent Field Theory.

Boris M Okrugin1,2, Ralf P Richter1,3, Frans A M Leermakers4

  • 1CIC biomaGUNE, Biosurface Lab, Paseo Miramon 182, 20014 San Sebastian, Spain.

Polymers
|April 17, 2020
PubMed
Summary

Electro-responsive surfaces with tethered polyelectrolytes change properties with voltage. Both strong and weak polyelectrolyte brushes show ion segregation, affecting thickness with salt concentration and voltage.

Keywords:
polyelectrolyte brushesself-consistent field theorysmart interfaces

More Related Videos

AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

11.8K
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

9.3K

Related Experiment Videos

Last Updated: Dec 24, 2025

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.3K
AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

11.8K
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

9.3K

Area of Science:

  • Surface science
  • Polymer physics
  • Electrochemistry

Background:

  • End-grafting polyelectrolytes to conducting substrates creates electro-responsive surfaces.
  • These surfaces can alter properties like adhesion and wettability via electrical voltage.

Purpose of the Study:

  • To compare equilibrium properties of tethered strong and weak polyelectrolyte brushes under an electrical field.
  • To investigate the influence of salt concentration and applied voltage on brush behavior.

Main Methods:

  • Utilized a self-consistent field numerical approach.
  • Analyzed polyelectrolyte brushes in both salt-free and salt-containing solutions.
  • Examined the dependence of brush thickness on salt concentration and applied voltage.

Main Results:

  • Both strong and weak polyelectrolyte brushes showed ion segregation into two populations when the surface charge opposed the brush charge.
  • This segregation resulted in complex brush thickness variations with salt concentration.
  • Adjustable ionization of weak polyelectrolytes reduced their conformational response to applied voltage.

Conclusions:

  • Polyelectrolyte brush behavior is significantly influenced by surface charge, salt concentration, and ionization degree.
  • The findings provide insights into designing tunable electro-responsive surfaces for various applications.