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

Motion Of A Charged Particle In A Magnetic Field01:22

Motion Of A Charged Particle In A Magnetic Field

7.2K
A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move perpendicular to it. If the field is in a vacuum, the magnetic field is the dominant factor determining the motion. Since the magnetic force is perpendicular to the direction of motion, a charged particle follows a curved path. The particle continues to follow this curved path until it forms a complete circle. Another way to look at this is that the...
7.2K
Contact Angle01:13

Contact Angle

23.7K
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
23.7K
Contact-dependent Signaling01:19

Contact-dependent Signaling

47.6K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
47.6K
Equation of Motion: General Plane motion01:22

Equation of Motion: General Plane motion

591
In the context of a rigid body's movement within a general plane, it is important to understand that this motion is typically triggered by external forces or couple moments exerted onto it. This principle can be explained through Newton's second law, which stipulates the translational motion of the body's center of mass along each axis.
Moreover, the body's center of mass experiences a rotational effect as a result of these couple moments. This rotation can be articulated as the...
591
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

590
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
590
Equation of Motion: General Plane motion - Problem Solving01:16

Equation of Motion: General Plane motion - Problem Solving

515
Consider a lawn roller with a mass of 100 kg, a radius of 0.2 meters, and a radius of gyration of 0.15 meters. A force of 200 N is applied to this roller, angled at 60 degrees from the horizontal plane. What will be the angular acceleration of the lawn roller?
The friction between the roller and the ground is characterized by two coefficients. The static friction coefficient is 0.15, while the kinetic friction coefficient is 0.1. These values are crucial in understanding the interaction between...
515

You might also read

Related Articles

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

Sort by
Same author

On the Relation between Hamaker Constant and Contact Line Friction.

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

In-Situ Optical Tracking of Electrochemically Growing Metal Interface on Hydrogen Bubble Templated Electrodes.

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

Paper-Droplet Hybrid Strategy for Highly Selective Blood Plasma Separation in Multiplex Diagnostics.

Analytical chemistry·2025
Same author

Paper-based microfluidic device for serum zinc assay by colorimetry.

The Analyst·2025
Same author

Influence of Bulk Viscosity on the Interfacial Properties of Highly Viscous Extended Liquid Thin Films.

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

Multiscale Investigation of Liquid Imbibition on an Electrodeposited Rough Surface.

Langmuir : the ACS journal of surfaces and colloids·2024

Related Experiment Video

Updated: Feb 11, 2026

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing
06:25

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Published on: February 23, 2024

1.2K

Field-Assisted Contact Line Motion in Thin Films.

Udita Uday Ghosh1, Sunando DasGupta1

  • 1Chemical Engineering Department , Indian Institute of Technology, Kharagpur , Kharagpur 721302 , India.

Langmuir : the ACS Journal of Surfaces and Colloids
|April 18, 2018
PubMed
Summary

Externally applied fields influence thin liquid films near contact lines, altering meniscus shape and transport. This study explores thermal, electrical, and magnetic field effects on liquid film behavior and stability.

More Related Videos

A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry
06:36

A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry

Published on: April 15, 2021

4.2K
Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films
13:05

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films

Published on: May 11, 2019

8.1K

Related Experiment Videos

Last Updated: Feb 11, 2026

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing
06:25

Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

Published on: February 23, 2024

1.2K
A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry
06:36

A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry

Published on: April 15, 2021

4.2K
Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films
13:05

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films

Published on: May 11, 2019

8.1K

Area of Science:

  • Physics
  • Fluid Dynamics
  • Surface Science

Background:

  • Intermolecular and surface forces govern transport phenomena at the contact line of extended menisci.
  • Applied fields can destabilize menisci, affecting shape, spreading, and potentially causing oscillations.

Purpose of the Study:

  • To explore the behavior of curved thin liquid films under thermal, electrical, and magnetic field perturbations.
  • To investigate the effects of particle charge and polarity in colloidal suspensions.
  • To understand the role of disjoining pressure and Hamaker constant in these systems.

Main Methods:

  • In situ evaluation of shape-dependent intermolecular force fields using optical interference and image processing.
  • Determination of Hamaker constant.
  • Evaluation of spatial and temporal variations of capillary forces for advancing and receding menisci.
  • Application of the augmented Young-Laplace equation.

Main Results:

  • Identified the critical role of disjoining pressure.
  • Determined the Hamaker constant.
  • Observed Maxwell-stress-induced enhanced spreading during electrowetting and field-induced spreading under magnetic fields, noting distinct characteristics.
  • Gained insights into ultrathin liquid film flow physics.

Conclusions:

  • Applied fields significantly impact thin liquid film behavior and transport phenomena near contact lines.
  • Optical techniques provide effective in situ analysis of intermolecular forces.
  • The augmented Young-Laplace equation offers deeper understanding of fluid dynamics in confined liquid films.