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

Frictional Force01:07

Frictional Force

9.6K
When a body is in motion, it encounters resistance because the body interacts with its surroundings. This resistance is known as friction, a common yet complex force whose behavior is still not completely understood. Friction opposes relative motion between systems in contact, but also allows us to move. Friction arises in part due to the roughness of surfaces in contact. For one object to move along a surface, it must rise to where the peaks of the surface can skip along the bottom of the...
9.6K
Characteristics of Dry Friction01:21

Characteristics of Dry Friction

955
Dry friction occurs when two solid surfaces slide against each other without any lubrication or fluid present. It causes resistance when pushing objects along a surface, like a gardener pushing a wheelbarrow. The force applied to move the cart causes dry friction between the wheel and the ground.
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
955
Dry Friction01:30

Dry Friction

926
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
926
Kinetic Friction01:26

Kinetic Friction

1.4K
Consider a truck trying to pull a stationary car. As the truck exerts a force on the car, static friction is created at the point of contact between the two surfaces. This frictional force resists the car's movement and keeps it at rest. However, when the applied force by the truck surpasses the limiting static frictional force, an interesting phenomenon occurs. The frictional force at the interface reduces to a lower value, known as the kinetic frictional force. At this point, the car...
1.4K
Types of Friction Problems01:27

Types of Friction Problems

944
Friction is an essential concept in physics, engineering, and everyday life. It is the force that opposes the relative motion or tendency of such motion between two surfaces in contact. One of the most common types of friction encountered in various applications is dry friction. Dry friction problems can be broadly categorized into three types, each with unique characteristics and challenges.
The first type of dry friction problem involves situations where there is no apparent impending motion....
944
Static and Kinetic Frictional Force01:05

Static and Kinetic Frictional Force

25.1K
One of the simpler characteristics of sliding friction is that it is parallel to the contact surfaces between systems, and is always in a direction that opposes the motion or attempted motion of the systems relative to each other. If two systems are in contact and moving relative to one another, then the friction between them is called kinetic friction. For example, kinetic friction slows a hockey puck sliding on ice.
However, if two systems are in contact and are stationary relative to one...
25.1K

You might also read

Related Articles

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

Sort by
Same author

Quantifying Formation Permeability Effects on High-Temperature Aquifer Thermal Energy Storage.

ACS omega·2026
Same author

Engineering Orbital Hybridization via Coordination and Charging Modulation Toward Efficient and Stable Fe Single-Atom Catalysts for Superior Oxygen Reduction.

Angewandte Chemie (International ed. in English)·2026
Same author

Integrated model based on ultrasound attenuation and metabolic biomarkers for noninvasive assessment of hepatic fat fraction categories in MASLD: a QCT-referenced study.

Frontiers in physiology·2026
Same author

Evaluation of translational potential of mRNA vaccine candidate antigens for pancreatic cancer: a systematic review based on clinical evidence and stratified prioritization strategies.

Frontiers in immunology·2026
Same author

UBE2S emerges as a key driver in an NK cell-based prognostic model for clear cell renal cell carcinoma.

PloS one·2026
Same author

SspE-mediated immune defense: GTP hydrolysis as an allosteric switch coupling phosphorothioate recognition to DNA cleavage.

mBio·2026
Same journal

Metal-Organic Framework Monoliths Derived from Emulsion-Templated Foams for Reactive Filtration.

ACS applied materials & interfaces·2026
Same journal

Binary to Quaternary Rare-Earth Phosphates: Compositional Effects on Thermal Properties and CMAS Corrosion Resistance of Environmental Barrier Coatings.

ACS applied materials & interfaces·2026
Same journal

Suture-Free Piezoelectric Band-Aid Membrane for Complex Peripheral Nerve Defects.

ACS applied materials & interfaces·2026
Same journal

Single-Precursor to Dual-Function: A Transformable Metal-Organic Framework Nanoplatform for Photocatalytic H<sub>2</sub> Evolution and CO<sub>2</sub> Reduction.

ACS applied materials & interfaces·2026
Same journal

Surfactant-Templated Synthesis of Mg-Stabilized High-Loading Co Single Atoms in Mesoporous Silica Featuring Robust Co-O Bonds for Efficient Peroxymonosulfate Activation.

ACS applied materials & interfaces·2026
Same journal

Toughening Driven by Interphase Tuning in Bioinspired Nanocomposites: From Structural Engineering to Scalable Fabrication.

ACS applied materials & interfaces·2026
See all related articles

Related Experiment Video

Updated: Jan 15, 2026

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

Drop Friction on Textured Lubricant-Coated Surfaces.

Xiaoyu Chen1, Biruk Teka Gidreta1, Tanner Gaw2

  • 1Energy Transport Lab, Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.

ACS Applied Materials & Interfaces
|October 8, 2025
PubMed
Summary
This summary is machine-generated.

Drop friction on textured surfaces is reduced by a lubricant film, especially on tall, dense pillars. This finding is crucial for controlling liquid movement in microfluidic devices.

Keywords:
Landau–Levich–Derjaguin (LLD) lawdrop frictionlubricant-infused surfacereflection interference contrast microscopywhite-light interferometry

More Related Videos

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.3K
Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
07:23

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures

Published on: November 14, 2025

271

Related Experiment Videos

Last Updated: Jan 15, 2026

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
Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.3K
Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
07:23

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures

Published on: November 14, 2025

271

Area of Science:

  • Physics of soft matter
  • Fluid dynamics
  • Surface science

Background:

  • Understanding drop friction on textured surfaces is essential for microfluidics and lab-on-a-chip technologies.
  • Previous studies have reported conflicting findings regarding lubricant film presence on textured surfaces.

Purpose of the Study:

  • To investigate the influence of pillar height and density on drop friction on lubricant-coated surfaces.
  • To elucidate the mechanism behind drop friction on textured microstructures.
  • To provide design guidelines for controlling drop friction in microfluidic applications.

Main Methods:

  • Friction force measurement using a sensitive cantilever force sensor (±0.1 μN sensitivity).
  • Lubricant layer thickness estimation via white-light interferometry.
  • Visualization of the lubricant film using reflection interference contrast microscopy.

Main Results:

  • Drop friction on tall dense pillars is comparable to that on short pillars, indicating a Landau-Levich-Derjaguin (LLD) film.
  • A critical pillar density of approximately 50% transitions drop behavior from 'oleoplaning' to 'grazing'.
  • Friction on microholes and micropillars is similar at equivalent solid fractions, contradicting prior research.

Conclusions:

  • The presence of an LLD film significantly reduces drop friction on textured surfaces.
  • Pillar density is a critical parameter for controlling drop friction, enabling on-demand manipulation.
  • This research offers valuable insights for designing advanced microfluidic systems.