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

Colloidal precipitates01:09

Colloidal precipitates

778
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...
778
Van der Waals Interactions01:24

Van der Waals Interactions

66.7K
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.
66.7K
Intermolecular Forces in Solutions02:28

Intermolecular Forces in Solutions

34.8K
The formation of a solution is an example of a spontaneous process, a process that occurs under specified conditions without energy from some external source.
When the strengths of the intermolecular forces of attraction between solute and solvent species in a solution are no different than those present in the separated components, the solution is formed with no accompanying energy change. Such a solution is called an ideal solution. A mixture of ideal gases (or gases such as helium and argon,...
34.8K
Colloids03:22

Colloids

18.0K
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...
18.0K
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model01:09

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

449
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...
449
Intermolecular Forces and Physical Properties02:56

Intermolecular Forces and Physical Properties

22.7K
22.7K

You might also read

Related Articles

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

Sort by
Same author

Steady and oscillatory propulsion in reactive swimming droplets.

Soft matter·2026
Same author

Surfactant-Mediated Modulation of Thin Droplets Spreading on a Soft Substrate.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Emergence of Order in Chemically Active Droplets: Temporal Dynamics and Collective Behavior.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Pattern Formation in Evaporating Polymer Solutions-Interplay between Dewetting and Decomposition.

ACS polymers Au·2024
Same author

Harnessing Polar Interactions Tunes the Stability of Ultrathin Polymer Solution Films.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

Nature of instability in flow-driven porous anodic oxide.

Chaos (Woodbury, N.Y.)·2024
Same journal

Metastable excited states of iodide-alkyl halide cluster anions: Insights from photodetachment spectroscopy and non-Hermitian quantum chemistry.

The Journal of chemical physics·2026
Same journal

Pressure-induced thermal expansion anomalies in dhcp iron hydride associated with magnetoelastic coupling.

The Journal of chemical physics·2026
Same journal

Seniority eigenstate configuration interaction.

The Journal of chemical physics·2026
Same journal

A data-driven modeling study on the accurate identification of Doppler-free saturated absorption spectra in diatomic tellurium (130Te2).

The Journal of chemical physics·2026
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
See all related articles

Related Experiment Video

Updated: Sep 17, 2025

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

5.5K

Chemical interactions in active droplets.

Prateek Dwivedi1, Sobiya Ashraf1, Pawan Kumar1

  • 1Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, India.

The Journal of Chemical Physics
|July 2, 2025
PubMed
Summary
This summary is machine-generated.

Active droplets exhibit distinct scattering behaviors based on their solute Péclet number (Pe). Low Pe leads to repulsion, while high Pe allows for synchronized motion, revealing key insights into active matter interactions.

More Related Videos

Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics
07:57

Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics

Published on: November 10, 2014

8.0K
Glass-Based Devices to Generate Drops and Emulsions
08:45

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

2.8K

Related Experiment Videos

Last Updated: Sep 17, 2025

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

5.5K
Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics
07:57

Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics

Published on: November 10, 2014

8.0K
Glass-Based Devices to Generate Drops and Emulsions
08:45

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

2.8K

Area of Science:

  • Soft Matter Physics
  • Chemical Hydrodynamics
  • Active Matter Systems

Background:

  • Active droplets are model systems for studying interactions in biological organisms.
  • These droplets generate coupled chemical and hydrodynamic fields, influencing their behavior.

Purpose of the Study:

  • To investigate pairwise interactions between active droplets.
  • To determine the role of solute Péclet number (Pe) in droplet interactions.
  • To validate theoretical predictions on active droplet scattering behavior.

Main Methods:

  • Experimental investigation of micellar solubilization-based active droplets.
  • Analysis of droplet interactions across varying solute Péclet numbers (Pe).
  • Examination of droplet-wake interactions and scattering behavior.

Main Results:

  • Solute Péclet number (Pe) dictates interaction dominance: low Pe favors chemo-repulsion, high Pe favors hydrodynamic interactions.
  • Scattering behavior is invariant to droplet approach orientation, governed by intrinsic chemical polarity.
  • High Pe enables transient contact, synchronized motion, and reduced repulsion between droplets.

Conclusions:

  • Established a framework linking Pe-dependent chemical polarity to scattering outcomes.
  • Provided mechanistic insights into active droplet interactions and collective behaviors.
  • Findings support modeling and engineering of emergent dynamics in chemically active systems.