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

Colloidal aggregation induced by long range attractions.

Antonio M Puertas1, Antonio Fernández-Barbero, F Javier de Las Nieves

  • 1Group of Complex Fluids Physics, Department of Applied Physics, University of Almería, 04120 Almería, Spain. apuertas@ual.es

Langmuir : the ACS Journal of Surfaces and Colloids
|October 20, 2004
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

Tracer diffusion in granular suspensions: Testing the Enskog kinetic theory with direct-simulation Monte Carlo and molecular dynamics.

Physical review. E·2026
Same author

Nonlinear microrheology with time-dependent forces: Application to recoils in viscoelastic fluids.

Physical review. E·2024
Same author

On the Durability of Icephobic Coatings: A Review.

Materials (Basel, Switzerland)·2024
Same author

Insight into the Viscoelasticity of Self-Assembling Smectic Liquid Crystals of Colloidal Rods from Active Microrheology Simulations.

Journal of chemical theory and computation·2023
Same author

Linear response theory in stock markets.

Scientific reports·2021
Same author

Active microrheology in corrugated channels: Comparison of thermal and colloidal baths.

Journal of colloid and interface science·2021

Colloidal cluster structures were simulated. Long-range attractions create less dense, self-similar clusters, unlike typical aggregation, due to interpenetration effects.

Area of Science:

  • Colloid and Surface Science
  • Computational Physics
  • Materials Science

Background:

  • Colloidal systems form clusters through aggregation.
  • Understanding cluster structure is key to controlling material properties.
  • Diffusive aggregation typically leads to fractal structures.

Purpose of the Study:

  • To investigate the structural properties of colloidal clusters formed by long-range attractive interactions.
  • To compare cluster formation under diluted conditions with diffusive aggregation.
  • To analyze the influence of attraction range and colloidal density on cluster morphology.

Main Methods:

  • Monte Carlo simulations were employed to model colloidal cluster formation.
  • The simulations focused on systems with long-range attractive interactions.

Related Experiment Videos

  • System parameters included attraction range and volume fraction.

    • Main Results:

    • Clusters formed with moderate attraction range exhibit self-similar structures and lower densities than diffusive aggregation.
    • Long-range attractions (low kappa) result in nonfractal clusters, dense at short scales but open at long scales.
    • Higher colloidal density leads to more compact clusters in both diffusive and attraction-driven aggregation (fractal regime).

    Conclusions:

    • Interpenetration of aggregates is the primary mechanism explaining low-density cluster formation in attraction-driven aggregation.
    • The balance between interpenetration and aggregation at cluster tips dictates the final cluster density.
    • Simulation results provide insights into designing colloidal materials with controlled structures.