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

Search research articles

Related Experiment Videos

Marangoni effect reverses coffee-ring depositions.

Hua Hu, Ronald G Larson

The Journal of Physical Chemistry. B

|April 8, 2006

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by

Same author

Effects of light therapy on sleep and anxiety in Parkinson's disease: A pilot trial.

Journal of affective disorders·2026

Same author

Prevalence and a LASSO-derived prediction model for screening-positive mild cognitive impairment among older adults in Wuhan.

Scientific reports·2026

Same author

From muscle to brain: the mediating effect of vitamin D in the relationship between muscle loss and cognitive function in Alzheimer's disease.

Frontiers in aging neuroscience·2026

Same author

Impact of Parakinesia brachialis oscitans on limb functional recovery after stroke: a cohort study.

Frontiers in neurology·2026

Same author

Homocysteine Is Associated With Cognitive Impairment and Sarcopenia in Alzheimer's Disease.

Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society·2026

Same author

Public opinion dissemination simulation based on large language model multi-agent systems.

Scientific reports·2026

Same journal

Divergent Aggregation Pathways of DNA-AuNPs: Non-Watson-Crick Assembly Mediated by Structurally Diverse Electrolytes.

The journal of physical chemistry. B·2026

Same journal

Assessing Fluoroacetate Defluorination Potential across Diverse Enzymes Using Quantum Chemistry.

The journal of physical chemistry. B·2026

Same journal

Na<b><sup>+</sup></b> Solvation and Association in Na(SO<sub>3</sub>CF<sub>3</sub>)-Dimethoxyethane Electrolytes by Large-Angle X-Ray Scattering and DFT Calculations.

The journal of physical chemistry. B·2026

Same journal

Donor-Acceptor Separation Augments Temperature Dependence of Kinetic Isotope Effects in NADH Model Hydride Transfer Reactions: Mimicking Enzyme versus Mutant Dynamics.

The journal of physical chemistry. B·2026

Same journal

Disordered Worm-Like Clusters in a Hexagonal Mesophase Former: Simulation and Thermodynamic Description.

The journal of physical chemistry. B·2026

Same journal

Comparative Biophysical Analysis of Healthy and Inflamed Intestinal Membrane Models Using Langmuir Monolayers.

The journal of physical chemistry. B·2026

See all related articles

The coffee-ring effect requires a pinned contact line and suppressed Marangoni flow. Controlling this flow can redirect material deposition during droplet evaporation.

Area of Science:

Fluid dynamics
Materials science
Surface science

Background:

The coffee-ring effect, or enhanced deposition at the edge of drying droplets, is a common phenomenon.
Understanding the underlying mechanisms is crucial for controlling deposition patterns.

Discussion:

This study experimentally and theoretically investigates the conditions necessary for coffee-ring deposit formation.
It highlights the dual requirement of a pinned contact line and the suppression of Marangoni flow.
Conversely, for simple organic fluids, evaporation-driven flow leads to central deposition.

Key Insights:

Marangoni flow, driven by surface tension gradients from evaporation, significantly influences deposition patterns.
Suppression of Marangoni flow, alongside a pinned contact line, is essential for the coffee-ring effect.

Related Experiment Videos

Evaporation-driven recirculatory flow can be manipulated to control deposition.

Outlook:

The findings suggest potential for controlling and redirecting evaporation-driven deposition and assembly of colloids and other materials.
This research opens avenues for novel applications in micro- and nanofabrication.
Further exploration into manipulating fluid dynamics in drying droplets is warranted.