Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Surface Tension, Capillary Action, and Viscosity

Surface Tension, Capillary Action, and Viscosity

Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...

You might also read

Related Articles

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

Sort by

Same author

Electroacupuncture prevents ovariectomy-induced osteoporosis in rats: a randomised controlled trial.

Acupuncture in medicine : journal of the British Medical Acupuncture Society·2012

Same author

Novel thermogelling dispersions of polymer nanoparticles for controlled protein release.

Nanomedicine : nanotechnology, biology, and medicine·2012

Same author

Block copolymer-based gadolinium nanoparticles as MRI contrast agents with high T1 relaxivity.

Nanomedicine (London, England)·2012

Same author

c-Met, epidermal growth factor receptor, and insulin-like growth factor-1 receptor are important for growth in uveal melanoma and independently contribute to migration and metastatic potential.

Melanoma research·2012

Same author

An epigenetic role for PRL-3 as a regulator of H3K9 methylation in colorectal cancer.

Gut·2012

Same author

Remote ischemic postconditioning protects the brain from global cerebral ischemia/reperfusion injury by up-regulating endothelial nitric oxide synthase through the PI3K/Akt pathway.

Brain research·2012

Search research articles

Related Experiment Video

Updated: Nov 27, 2025

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

Self-assembly and viscosity changes of binary surfactant solutions: A molecular dynamics study.

Jun Zhou¹, P G Ranjith¹

¹Department of Civil Engineering, Monash University, Building 60, Melbourne, Victoria 3800, Australia.

Journal of Colloid and Interface Science

|December 7, 2020

Summary

Molecular simulations reveal that the Martini force field accurately models surfactant self-assembly and synergistic micelle formation in binary ionic surfactant solutions. However, it does not fully capture viscosity enhancement with wormlike micelle formation.

Keywords:

CAPB/SDS mixture Molecular dynamics Morphology transition Surfactant micelle Viscosity

More Related Videos

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Published on: January 3, 2014

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Published on: May 1, 2020

Related Experiment Videos

Last Updated: Nov 27, 2025

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Published on: January 3, 2014

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Published on: May 1, 2020

Area of Science:

Physical Chemistry
Materials Science
Computational Chemistry

Background:

Surfactant structure and self-assembly significantly impact solution viscosity.
Understanding binary ionic surfactant systems is crucial for various applications.

Purpose of the Study:

To model the synergistic effects in aggregation and viscosity changes of a binary ionic surfactant system using molecular simulations.
To evaluate the performance of the Martini force field in predicting surfactant self-assembly and solution properties.

Main Methods:

Coarse-grained molecular dynamics simulations were employed.
The Sodium Dodecyl Sulfate (SDS)/Cocamidopropyl Betaine (CAPB) binary surfactant solution was modeled.
Both equilibrium and non-equilibrium methods were used to calculate viscosity.

Main Results:

The new Martini force field version reasonably reproduced surfactant self-assembly, including synergistic micelle formation in SDS/CAPB systems.
Cylindrical and wormlike micelles formed at lower concentrations compared to pure systems.
Equilibrium and non-equilibrium viscosity calculations yielded comparable results, showing a linear increase with concentration for pure systems.

Conclusions:

The Martini force field is effective for modeling self-assembly and synergistic effects in binary surfactant solutions.
Further force field parameter optimization is needed to accurately capture viscosity enhancement associated with wormlike micelle formation.