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

Plastic Deformations of Members with a Single Plane of Symmetry

Plastic Deformations of Members with a Single Plane of Symmetry

When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...

Position-effect Variegation

Position-effect Variegation

In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.

Plastic Deformations

Plastic Deformations

Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their original...

Plastic Deformations

Plastic Deformations

It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...

Oriented Surfaces

Oriented Surfaces

A surface is called orientable if a consistent choice of unit normal vector can be made at every point on the surface. A thin soap film stretched across a wire loop provides a familiar example. The film separates the air on one side from the air on the other, so one side can be selected as positive and the opposite side as negative. Once this choice is made, a unit normal vector can be assigned smoothly across the entire surface.At each point on the soap film, a unit normal vector points...

Cylinders in Three-Dimensional Space

Cylinders in Three-Dimensional Space

A cylindrical surface is generated when a two-dimensional profile curve is translated along a straight line in three-dimensional space. The translated copies of the curve form a surface composed of parallel rulings, each oriented in the same fixed direction. This construction allows many three-dimensional forms to be described using relatively simple planar equations.In Cartesian coordinates, a cylindrical surface is often recognized by an equation that omits one of the three variables. For...

You might also read

Related Articles

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

Sort by

Same author

Capillary bundling of microtubules by condensates.

bioRxiv : the preprint server for biology·2026

Same author

Room-Temperature Aerosol Dehydration of Green Fluorescent Protein.

Drying technology·2026

Same author

Ultrasensitive Detection of Macromolecules in Water Via Flowing Nanoparticles on a Microchip.

Nano letters·2026

Same author

Soft-Lubrication Drainage and Rupture in Particle-Driven Vesicles.

Physical review letters·2026

Same author

Upper Bounds on the Colloid Separation Efficiency of Diffusiophoresis.

Langmuir : the ACS journal of surfaces and colloids·2026

Same author

The influence of electrical charge on plasmodesma conductivity.

Proceedings of the National Academy of Sciences of the United States of America·2026

Search research articles

Related Experiment Video

Updated: Jul 13, 2026

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO₂/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

Imbibition by polygonal spreading on microdecorated surfaces.

Laurent Courbin¹, Etienne Denieul, Emilie Dressaire

¹School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

Nature Materials

|August 19, 2007

Summary

Researchers explored how liquid droplets form specific shapes on patterned surfaces. The study reveals that the surface topography and liquid properties determine the final droplet shape, offering insights for material design.

More Related Videos

Lipid-Protein Membrane Structure-Function Characterization using Droplet Interface Bilayers

Lipid-Protein Membrane Structure-Function Characterization using Droplet Interface Bilayers

Published on: June 12, 2026

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

Related Experiment Videos

Last Updated: Jul 13, 2026

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO₂/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

Lipid-Protein Membrane Structure-Function Characterization using Droplet Interface Bilayers

Lipid-Protein Membrane Structure-Function Characterization using Droplet Interface Bilayers

Published on: June 12, 2026

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

Area of Science:

Surface science
Fluid dynamics
Materials science

Background:

Micropatterned surfaces are crucial for studying wetting phenomena and surface heterogeneities.
Topographic and chemical patterns influence droplet behavior, leading to applications like self-cleaning surfaces and DNA chips.

Purpose of the Study:

To investigate wetting on topographically patterned, chemically homogeneous surfaces.
To demonstrate mechanisms of shape selection during liquid imbibition into textures.
To understand how surface topography and liquid properties dictate droplet shape.

Main Methods:

Fabrication of topographically patterned surfaces.
Controlled liquid droplet deposition and observation of imbibition dynamics.
Analysis of droplet shapes formed on the patterned surfaces.

Main Results:

Deterministic final droplet shapes, including octagons, squares, hexagons, and circles, were achieved.
Shape selection was found to depend on topographic features and the liquid's equilibrium contact angle.
A 'shape' diagram was developed based on dynamics to summarize observations.

Conclusions:

Topographic patterns on chemically homogeneous surfaces can deterministically control droplet shape during imbibition.
The findings provide a framework for designing surfaces with predictable liquid spreading behavior.
This research offers a designer's toolbox for controlling droplet morphology on patterned substrates.