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

Surface Tension of Fluid01:22

Surface Tension of Fluid

1.8K
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...
1.8K
Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

34.0K
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...
34.0K
Hydrostatic Pressure Force on a Plane Surface01:04

Hydrostatic Pressure Force on a Plane Surface

2.1K
When a plane surface is submerged in a fluid, hydrostatic forces develop on the surface due to the fluid's pressure. For horizontal surfaces, the pressure exerted by the fluid is uniform because the depth remains constant. The resultant force is determined by the pressure at the given depth multiplied by the area of the surface, and it acts through the centroid of the surface. For vertical surfaces, the pressure varies with depth, increasing as the distance from the fluid's free surface...
2.1K
Hydrostatic Pressure Force on a Curved Surface01:04

Hydrostatic Pressure Force on a Curved Surface

2.6K
Hydrostatic pressure on curved surfaces is a fundamental concept in fluid mechanics with broad applications in the civil engineering field. When fluid is in contact with a curved surface, as in a reservoir, dam, or storage tank, it exerts pressure that varies in magnitude and direction along the curved surface. To assess the total hydrostatic force exerted by the fluid on a curved structure, engineers typically isolate the fluid volume adjacent to the surface and analyze the forces acting on...
2.6K
Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

3.4K
When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
3.4K
Capillarity in Fluid01:19

Capillarity in Fluid

1.4K
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...
1.4K

You might also read

Related Articles

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

Sort by
Same author

High-Performance Weavable Piezoelectret Fibers via Scalable In Situ Poling Melt-Spinning for Real-Time Knee Joint Rehabilitation Monitoring.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Reverse Tesla valve modulated efficient water evaporation and cooling.

Nature communications·2026
Same author

Mesoscale modelling of starch digestion.

Molecular physics·2026
Same author

Patient and provider cost analysis of integrating rheumatic heart disease care into the primary healthcare system in Northern Uganda.

International journal of cardiology·2026
Same author

A Paintable Bioinspired Stratified Skin Resolving the Cooling-Electricity Trade-Off for All-Weather Building Retrofits.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

A bionic multi-interface evaporator for omnidirectional solar-driven reverse multistage desalination.

Nanoscale·2026
Same journal

Simple input-output dependencies explain neuronal activity.

Nature physics·2026
Same journal

Scaling and self-similarity in the formation of the embryonic epigenome.

Nature physics·2026
Same journal

Adhesion-driven rigidity transition decoupled from density-driven jamming triggers epithelial organization in embryonic tissues.

Nature physics·2026
Same journal

The local mechanostructural properties of protein cargoes regulate nucleocytoplasmic transport.

Nature physics·2026
Same journal

Squeezing, trisqueezing and quadsqueezing in a hybrid oscillator-spin system.

Nature physics·2026
Same journal

Noise-induced shallow circuits and the absence of barren plateaus.

Nature physics·2026
See all related articles

Related Experiment Video

Updated: Mar 1, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
11:20

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Published on: August 15, 2018

9.0K

Pancake bouncing on superhydrophobic surfaces.

Yahua Liu1, Lisa Moevius2, Xinpeng Xu3

  • 1Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong.

Nature Physics
|May 30, 2017
PubMed
Summary
This summary is machine-generated.

Engineered superhydrophobic surfaces reduce liquid drop contact time by enabling a pancake bouncing regime. This novel surface design promotes rapid drop detachment for applications like anti-icing and self-cleaning.

More Related Videos

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
10:52

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

8.0K
Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method
07:18

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Published on: June 14, 2019

7.1K

Related Experiment Videos

Last Updated: Mar 1, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
11:20

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Published on: August 15, 2018

9.0K
Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
10:52

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

8.0K
Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method
07:18

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Published on: June 14, 2019

7.1K

Area of Science:

  • Surface science
  • Fluid dynamics
  • Materials engineering

Background:

  • Rapid drop detachment is crucial for anti-icing, dropwise condensation, and self-cleaning applications.
  • Existing surfaces often struggle with efficient drop removal, especially at varying impact velocities.

Purpose of the Study:

  • To engineer superhydrophobic surfaces that achieve a novel drop bouncing regime for reduced contact time.
  • To investigate the mechanisms behind this counter-intuitive pancake bouncing behavior.

Main Methods:

  • Fabrication of superhydrophobic surfaces with patterned submillimetre posts and nano-textures.
  • High-speed imaging to analyze drop impact dynamics and contact time.
  • Theoretical analysis of capillary energy conversion and timescale matching.

Main Results:

  • Demonstrated a 'pancake bouncing' regime where drops spread and detach in a flattened shape.
  • Achieved a four-fold reduction in drop contact time compared to conventional rebound.
  • Identified capillary energy rectification as the driving force for detachment.
  • Showed that tapered micro/nanotextures enable velocity-independent pancake bouncing.

Conclusions:

  • Superhydrophobic surfaces with specific micro/nanotextures can significantly reduce drop contact time.
  • The pancake bouncing regime offers a new strategy for efficient liquid drop detachment.
  • This approach has broad implications for improving performance in anti-icing, condensation, and self-cleaning technologies.