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 Experiment Videos

Continuous polyelectrolyte adsorption under an applied electric potential.

A Pascal Ngankam1, Paul R Van Tassel

  • 1Department of Chemical Engineering, Yale University, New Haven, CT 06520-8286, USA.

Proceedings of the National Academy of Sciences of the United States of America
|January 19, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Polyelectrolyte complexation with biofunctionalized multivalent ions: Coarse-grained model and isothermal titration calorimetry experiment.

The Journal of chemical physics·2026
Same author

Polyelectrolyte Influence on Beta-Hairpin Peptide Stability: A Simulation Study.

The journal of physical chemistry. B·2022
Same author

Equilibrium state model for surfactants in oils: Colloidal assembly and adsorption.

Journal of colloid and interface science·2022
Same author

Weak polyelectrolyte-based multilayers via layer-by-layer assembly: Approaches, properties, and applications.

Advances in colloid and interface science·2020
Same author

Repulsion between oppositely charged rod-shaped macromolecules: Role of overcharging and ionic confinement.

The Journal of chemical physics·2017
Same author

Fibronectin-based multilayer thin films.

Colloids and surfaces. B, Biointerfaces·2017
Same journal

Chemotactic self-organization captures the dynamics of mammalian hair follicle patterning.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Tomographic imaging of superconducting order using particle-hole interference.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Inhibitory potential of autologous neutralizing antibodies sets quantitative limits on the rebound-competent HIV-1 reservoir.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Inferring epidemiological parameters under an infectious phylogeography model with visitor dynamics.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Analytical modeling for suction cup designs for skin-interfaced wearable devices.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Improving cell-free metabolism through direct integration of artificial respiratory chains.

Proceedings of the National Academy of Sciences of the United States of America·2026
See all related articles

Applying an electric potential to charged polymers on surfaces can lead to continuous adsorption over hours. This controlled polymer film formation is influenced by polymer structure and electric conditions.

Area of Science:

  • Surface Science
  • Polymer Chemistry
  • Electrochemistry

Background:

  • Interactions between charged macromolecules and surfaces are crucial in natural and industrial processes.
  • Controlling polymer adsorption kinetics on surfaces is essential for material design.

Purpose of the Study:

  • To investigate the influence of applied electric potential on charged polymer adsorption kinetics.
  • To understand the mechanisms governing continuous adsorption under electrochemical control.

Main Methods:

  • Optical waveguide lightmode spectroscopy (OWLS) to monitor adsorption in real-time.
  • Indium tin oxide (ITO) substrates for applying electric potentials.
  • X-ray photoelectron spectroscopy (XPS) to analyze polymer layer composition and charge.

Related Experiment Videos

Main Results:

  • Certain polycations exhibit continuous, asymptotically linear adsorption over hours with an applied anodic potential.
  • Adsorption kinetics and mass depend on polymer chemistry, applied potential, and ionic strength.
  • Adsorption is independent of bulk polymer concentration, indicating post-adsorption events are rate-limiting.
  • Continuous adsorption leads to suppressed polymer charge within layers, without electrochemical reactions.

Conclusions:

  • A mechanism involving polymer-polymer binding, facilitated by reduced electrostatic repulsion and enhanced ionic correlations, explains continuous adsorption.
  • Applied electric potential offers a method for single-step fabrication of tailored nanoscale polymer films.