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, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

28.4K
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...
28.4K
Cohesion01:07

Cohesion

54.7K
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...
54.7K

You might also read

Related Articles

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

Sort by
Same author

Ice sliding on nanoscale-smooth surfaces and the role of the quasi-liquid layer.

Materials horizons·2026
Same author

Comparative nutritional analysis of newly developed interspecific citrus hybrids: multivariate insights for crop improvement.

Scientific reports·2026
Same author

Synergistic H<sub>2</sub>S sensing in Pd-functionalized In<sub>2</sub>S<sub>3</sub>flakes.

Nanotechnology·2026
Same author

Linoleic Acid Supplementation Attenuates Inflammation and Redox Imbalance During Aging in Wistar Rats.

Indian journal of clinical biochemistry : IJCB·2026
Same author

Engineering plasmon-enhanced cathode for photo-electrocatalytic conversion of CO<sub>2</sub>: Insight into the activity trends.

Journal of colloid and interface science·2026
Same author

Interdigital pilonidal sinus of the foot: An unusual presentation of occupational dermatoses.

Indian journal of dermatology, venereology and leprology·2026

Related Experiment Video

Updated: Aug 14, 2025

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure
08:02

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Published on: April 17, 2018

10.5K

Out-of-Plane Biphilic Surface Structuring for Enhanced Capillary-Driven Dropwise Condensation.

Luca Stendardo1, Athanasios Milionis1, George Kokkoris2,3

  • 1Laboratory of Thermodynamics in Emerging Technologies (LTNT), ETH Zurich, Sonneggstrasse 3, Zurich 8092, Switzerland.

Langmuir : the ACS Journal of Surfaces and Colloids
|January 16, 2023
PubMed
Summary

Researchers developed a novel biphilic surface texture that uses capillarity to eject condensate droplets like a slingshot. This new design significantly reduces droplet ejection volume, enhancing heat transfer and water harvesting efficiency.

More Related Videos

Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
11:20

Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry

Published on: January 9, 2014

6.6K
Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

3.3K

Related Experiment Videos

Last Updated: Aug 14, 2025

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure
08:02

Fabricating High-viscosity Droplets using Microfluidic Capillary Device with Phase-inversion Co-flow Structure

Published on: April 17, 2018

10.5K
Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
11:20

Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry

Published on: January 9, 2014

6.6K
Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

3.3K

Area of Science:

  • Surface science
  • Fluid dynamics
  • Heat transfer

Background:

  • Efficient condensation heat transfer is crucial for industrial applications.
  • Hydrophobic surfaces enhance dropwise condensation but further improvements are needed.
  • Sophisticated surface engineering can optimize condensate droplet departure.

Purpose of the Study:

  • To present a novel out-of-plane biphilic surface topography for enhanced condensation.
  • To explore a new capillarity-driven droplet departure mechanism.
  • To optimize surface microtexture for improved heat transfer and water harvesting.

Main Methods:

  • Utilized a three-dimensional, multiphase computational approach.
  • Designed biphilic diverging microcavities with hydrophilic spots and superhydrophobic textures.
  • Investigated the effect of hydrophilic spot arrangement and pyramid angles on droplet behavior.

Main Results:

  • Identified an optimal biphilic surface texture inducing a "slingshot-like" droplet ejection.
  • Achieved significant droplet deformational stretching and rapid departure.
  • Demonstrated up to 56% lower droplet ejection volume compared to superhydrophobic pillars.

Conclusions:

  • The novel biphilic surface texture offers an effective strategy for condensate droplet departure.
  • This mechanism enhances condensation efficiency and water harvesting capabilities.
  • The findings present a promising new direction for surface microtexture design.