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

Intermolecular Forces

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...

Aqueous Solutions and Heats of Hydration

Aqueous Solutions and Heats of Hydration

Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...

Electrochemical Systems

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...

The Electrical Double Layer

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...

Theory of Strong Electrolytes

Theory of Strong Electrolytes

The interionic forces of the strong electrolytes depend on the solvent's dielectric constant, which is the ability of a solvent to store electrical energy, based on its polarizability. and the solution's concentration. In high-dielectric solvents and in dilute solutions, weak electrostatic forces keep ions apart. However, in low-dielectric solvents or concentrated solutions, stronger interionic forces may cause ions to pair up as ionic doublets despite being fully ionized. The theory of strong...

Two Components: Liquid–Liquid Systems

Two Components: Liquid–Liquid Systems

A pressure-composition phase diagram explicitly describes the behavior of an ideal solution of two volatile liquids under varying pressures and compositions. A pressure-composition diagram has two main curves. The bubble point curve represents the plot of pressure versus liquid mole fraction. It indicates the pressure at which the first bubble of vapor forms from the liquid phase as the system pressure decreases.The dew point curve is the pressure versus vapor mole fraction. It indicates the...

You might also read

Related Articles

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

Sort by

Same author

Modeling performance of a two-dimensional capsule in a microchannel flow: long-term lateral migration.

Physical review. E, Statistical, nonlinear, and soft matter physics·2010

Same author

Neuroprotective effects of resveratrol on ischemic injury mediated by improving brain energy metabolism and alleviating oxidative stress in rats.

Neuropharmacology·2010

Same author

[Determination of prim-O-glucosylcimifugin and 5-O-methylvisammisoide in Saposhnikovia divaricata and HPLC fingerprint analysis].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·2010

Same author

Chronic treatment of exendin-4 affects cell proliferation and neuroblast differentiation in the adult mouse hippocampal dentate gyrus.

Neuroscience letters·2010

Same author

Design, synthesis and activity of benzothiazole-based inhibitors of NO production in LPS-activated macrophages.

Bioorganic & medicinal chemistry letters·2010

Same author

Tuberculosis should not be ignored in patients with peripheral gangrene.

Journal of vascular surgery·2010

Search research articles

Related Experiment Video

Updated: May 14, 2026

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Published on: May 1, 2020

Dynamic electrowetting and dewetting of ionic liquids at a hydrophobic solid-liquid interface.

Hua Li¹, Mani Paneru, Rossen Sedev

¹Ian Wark Research Institute, University of South Australia, Mawson Lakes 5095, Australia.

Langmuir : the ACS Journal of Surfaces and Colloids

|February 1, 2013

Summary

Ionic liquids dynamically spread and retract on surfaces, with their movement speed linked to viscosity. Energy is lost through viscous and molecular processes, especially during retraction at the contact line.

More Related Videos

The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids

The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids

Published on: September 30, 2014

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

Related Experiment Videos

Last Updated: May 14, 2026

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Self-Assembly of Hybrid Lipid Membranes Doped with Hydrophobic Organic Molecules at the Water/Air Interface

Published on: May 1, 2020

The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids

The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids

Published on: September 30, 2014

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

Area of Science:

Physical Chemistry
Materials Science

Background:

Electrowetting phenomena are crucial for microfluidic devices.
Understanding the dynamic behavior of ionic liquids is essential for advanced applications.

Purpose of the Study:

To investigate the dynamic electrowetting and dewetting behavior of ionic liquids.
To analyze the influence of viscosity on the characteristic time of these processes.
To explore energy dissipation mechanisms during dynamic contact line motion.

Main Methods:

Utilized high-speed video microscopy to observe dynamic processes.
Employed five imidazolium-based ionic liquids as probe liquids.
Applied external voltage for electrowetting and removed it for dewetting.

Main Results:

Droplet base area exhibited exponential variation during electrowetting and dewetting.
Characteristic time correlated positively with ionic liquid viscosity.
Electrowetting and retraction kinetics were modeled using hydrodynamic and molecular-kinetic approaches.
Energy dissipation occurred via viscous and molecular routes, with significant dissipation at the three-phase contact line during retraction.

Conclusions:

The study provides insights into the dynamic behavior of ionic liquids under electrical control.
Findings are relevant for optimizing devices involving electrowetting and dewetting.
Implications for electro-optical imaging, microfluidics, and fuel cell technologies.