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

Colloids03:22

Colloids

20.0K
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...
20.0K
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model01:09

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

649
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...
649
Cohesion01:07

Cohesion

57.7K
Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a...
57.7K
Intermolecular Forces in Solutions02:28

Intermolecular Forces in Solutions

37.7K
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,...
37.7K
Surface Tension of Fluid01:22

Surface Tension of Fluid

1.0K
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
1.0K
Capillarity in Fluid01:19

Capillarity in Fluid

668
Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
668

You might also read

Related Articles

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

Sort by
Same author

Multiscale red blood cell hitchhiking for targeted deep tissue gene delivery in lungs.

Nature communications·2025
Same author

Transport physics-informed reinforcement learning agents deployed in standalone infusion pumps for managing multidrug delivery in critical care.

Bioengineering & translational medicine·2025
Same author

A Method for Temporally Resolved Continuous Inline Measurement of Multiple Solute Concentrations With Microfluidic Spectroscopy.

IEEE open journal of engineering in medicine and biology·2025
Same author

Dynamic nanostructures at the surface of rising bubbles in amphiphile solutions: Comparison of low-molecular-weight surfactants and proteins.

Advances in colloid and interface science·2025
Same author

Antifoams in non-aqueous diesel fuels: Thin liquid film dynamics and antifoam mechanisms.

Journal of colloid and interface science·2024
Same author

Neutrophils bearing adhesive polymer micropatches as a drug-free cancer immunotherapy.

Nature biomedical engineering·2024

Related Experiment Video

Updated: Dec 9, 2025

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level
11:14

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

Published on: January 10, 2017

12.0K

Bubble Coalescence at Wormlike Micellar Solution-Air Interfaces.

V Chandran Suja1, A Kannan1, B Kubicka2

  • 1Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States.

Langmuir : the ACS Journal of Surfaces and Colloids
|September 14, 2020
PubMed
Summary
This summary is machine-generated.

Wormlike micelle (WLM) solutions

More Related Videos

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
06:16

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

Published on: February 11, 2018

18.0K
Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces
08:05

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

2.7K

Related Experiment Videos

Last Updated: Dec 9, 2025

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level
11:14

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

Published on: January 10, 2017

12.0K
Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
06:16

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

Published on: February 11, 2018

18.0K
Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces
08:05

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

2.7K

Area of Science:

  • Rheology and soft matter physics
  • Colloid and surface science

Background:

  • Wormlike micelles (WLM) are self-assembled surfactant structures in aqueous solutions, exhibiting viscoelastic properties.
  • These properties make WLMs valuable in applications like cosmetics, drag reduction, and hydraulic fracturing.
  • Bubble stability in WLM solutions is crucial for product development requiring stable dispersions.

Purpose of the Study:

  • To investigate the thin film drainage dynamics preceding bubble coalescence in WLM solutions.
  • To understand how varying viscoelastic properties of WLM solutions affect bubble coalescence.
  • To identify unique fluid dynamic phenomena during drainage in these systems.

Main Methods:

  • Studied bubble coalescence at flat WLM solution-air interfaces.
  • Systematically varied salt and surfactant types and concentrations to span two orders of magnitude in moduli and relaxation times.
  • Observed and analyzed the stages of thin film drainage and bubble coalescence.

Main Results:

  • The viscoelasticity of WLM solutions significantly modifies the stages of thin film drainage and bubble coalescence.
  • Observed phenomena include dimple formation, thinning, washout, and final drainage stages.
  • Unique fluid dynamic events such as elastic recoil, thin film ripping, and single-step terminal drainage were identified.

Conclusions:

  • Bubble coalescence in WLM solutions is strongly influenced by the solution's viscoelasticity.
  • The study reveals novel fluid dynamic behaviors during thin film drainage, offering insights into WLM system stability.
  • Findings are critical for optimizing WLM-based products where bubble dispersion and stability are key.