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

The Colloidal State01:29

The Colloidal State

75
The formation of a colloidal system is exemplified by an aqueous solution containing Cl− ions is introduced to another containing Ag+ ions, resulting in the precipitation of solid AgCl as extremely tiny crystals. Instead of settling out as a filterable precipitate, these crystals remain suspended in the liquid, showcasing a colloidal system.A colloidal system involves colloidal particles within the approximate range of 1 to 1000 nm in at least one dimension, dispersed in a medium called...
75
Colloids03:22

Colloids

21.9K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.9K
Colloids and Suspensions01:17

Colloids and Suspensions

3.8K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
3.8K
Colloidal precipitates01:09

Colloidal precipitates

6.7K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
6.7K
Theories of Dissolution: Diffusion Layer Model01:15

Theories of Dissolution: Diffusion Layer Model

2.1K
Dissolution, the process by which drug particles dissolve in a solvent, is explained by the diffusion layer model, a theoretical framework that simulates the absorption of oral drugs and allows us to analyze experimental data.
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
2.1K
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model01:09

Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model

894
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
894

You might also read

Related Articles

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

Sort by
Same author

Navigating Complex Phase Diagrams in Soft Matter Systems.

Physical review letters·2026
Same author

Using test particle sum rules to improve approximations in classical density functional theory: White-Bear and White-Bear mark II versions of the Lutsko functional.

Physical review. E·2026
Same author

Classical density functional theory for nanoparticle-laden droplets.

The Journal of chemical physics·2025
Same author

Exploration of Fluorinated Peptoid-Based Histone Deacetylase Inhibitors as Dual-Stage Antiplasmodial Agents.

Archiv der Pharmazie·2025
Same author

Development of Ethyl-Hydrazide-Based Selective Histone Deacetylase 6 (HDAC6) PROTACs.

ACS medicinal chemistry letters·2025
Same author

Exploring Alternative Zinc-Binding Groups in Histone Deacetylase (HDAC) Inhibitors Uncovers <b>DS-103</b> as a Potent Ethylhydrazide-Based HDAC Inhibitor with Chemosensitizing Properties.

Journal of medicinal chemistry·2025
Same journal

Topological properties of curved spacetime extended Su-Schrieffer-Heeger model.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Influence of lattice expansion on Cr ferromagnetism in Ce<sub>(1-x)</sub>La<sub>(x)</sub>CrGe<sub>3</sub>compounds revealed by atomic-scale measurements.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Bond-length-driven magnetic transition in quasi-one-dimensional CrSb<i>X</i><sub>3</sub>(<i>X</i>=S, Se).

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

Anelasticity in MgAl2O4 spinel due to cation order-disorder.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

The influence of water on the dynamics of alternating polymers P(C<sub>8</sub>EG<sub>4</sub>) and P(C<sub>4</sub>EG<sub>4</sub>) by broadband dielectric spectroscopy.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same journal

How surface curvature shapes water nanodroplets in air.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
See all related articles

Related Experiment Video

Updated: Mar 15, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.6K

Structural relaxation and diffusion in a model colloid-polymer mixture: dynamical density functional theory and

Daniel Stopper1, Roland Roth, Hendrik Hansen-Goos

  • 1Institute for Theoretical Physics, University of Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|September 10, 2016
PubMed
Summary
This summary is machine-generated.

This study investigates structural relaxation in colloid-polymer mixtures using dynamical density functional theory (DDFT) and simulations. Slow polymers significantly impact colloidal dynamics, leading to gelation-like behavior and a unique diffusion maximum.

More Related Videos

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

10.8K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Related Experiment Videos

Last Updated: Mar 15, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.6K
Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

10.8K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Area of Science:

  • Soft Matter Physics
  • Colloid and Polymer Science
  • Statistical Mechanics

Background:

  • Understanding structural relaxation is crucial for materials science.
  • Colloid-polymer mixtures exhibit complex dynamics influenced by particle interactions and Brownian motion.
  • Existing models often struggle to accurately capture the interplay between different particle types.

Purpose of the Study:

  • To investigate structural relaxation in colloid-polymer mixtures within the Asakura-Oosawa model.
  • To analyze the time evolution of the van Hove distribution function G(r,t) for both self and distinct parts.
  • To explore the influence of slow polymers on colloidal dynamics and diffusion.

Main Methods:

  • Dynamical Density Functional Theory (DDFT) with an accurate free-energy functional from fundamental measure theory.
  • Extension of the quenched functional framework to handle mixtures and remove unphysical self-interactions.
  • Dynamic Monte Carlo simulations to obtain long-time self-diffusion coefficients and validate DDFT results.

Main Results:

  • DDFT calculations of G(r,t) show excellent agreement with simulation data.
  • A significant peak at r=0 in the colloid-colloid distribution function was observed for slow polymers, indicative of gelation-like phenomena.
  • Colloidal self-diffusivity exhibited a maximum at intermediate packing fractions in the presence of slow polymers.

Conclusions:

  • The extended DDFT framework accurately describes structural relaxation in colloid-polymer mixtures.
  • Slow polymers play a critical role in inducing gelation-like structures and modifying colloidal diffusion.
  • A simple semi-empirical formula effectively captures the observed non-monotonic dependence of colloidal diffusivity on packing fraction.