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

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...

You might also read

Related Articles

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

Sort by

Same author

Microfluidic analysis of salt-stress-mediated antibiotic tolerance in <i>Mycobacterium smegmatis</i>.

Lab on a chip·2025

Same author

Dynamics of phase-separated microdroplets near the contact line of evaporating all-aqueous drops.

Soft matter·2024

Same author

Spheroids formation in large drops suspended in superhydrophobic paper cones.

Biomicrofluidics·2024

Same author

Nanometer-Resolved Operando Photo-Response of Faceted BiVO<sub>4</sub> Semiconductor Nanoparticles.

Journal of the American Chemical Society·2024

Same author

Dual enzyme-powered chemotactic cross β amyloid based functional nanomotors.

Nature communications·2023

Same author

Interferon-γ detection in point of care diagnostics: Short review.

Talanta·2022

Same journal

Porous flexible structure mediated synergistic boost of built-in electric field and photothermal effect for enhanced photocatalysis.

Journal of colloid and interface science·2026

Same journal

Bi/Bi<sub>2</sub>Ce<sub>2</sub>O<sub>7</sub> heterojunctions for visible-light photocatalytic nitrogen fixation: Synergistic enhancement by localized surface plasmon resonance and oxygen vacancies.

Journal of colloid and interface science·2026

Same journal

Interface engineering of ultrathin nickel metallene on titanium dioxide nanosheets for efficient photocatalytic hydrogen evolution.

Journal of colloid and interface science·2026

Same journal

Magnetic Janus droplets as soft robots.

Journal of colloid and interface science·2026

Same journal

Defect-induced hydrophilic CuMOF -modified CuBi<sub>2</sub>O<sub>4</sub> for nitrate to ammonia reduction.

Journal of colloid and interface science·2026

Same journal

Membrane lipid composition and amino acid sequence determine binding of SARS-CoV-2 fusion peptides.

Journal of colloid and interface science·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 17, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

Electroosmotic shear flow in microchannels.

Dileep Mampallil¹, Dirk van den Ende

¹Physics of Complex Fluids, MESA+ Institute, Department of Science and Technology, University of Twente, Enschede, The Netherlands.

Journal of Colloid and Interface Science

|October 24, 2012

Summary

This summary is machine-generated.

Researchers created controllable electroosmotic shear flow in microchannels using surface potential modification. This technique enables precise control over fluid velocity gradients for microfluidic applications.

More Related Videos

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Published on: February 4, 2011

Designing Microfluidic Devices for Studying Cellular Responses Under Single or Coexisting Chemical/Electrical/Shear Stress Stimuli

Designing Microfluidic Devices for Studying Cellular Responses Under Single or Coexisting Chemical/Electrical/Shear Stress Stimuli

Published on: August 13, 2016

Related Experiment Videos

Last Updated: May 17, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

Published on: February 4, 2011

Designing Microfluidic Devices for Studying Cellular Responses Under Single or Coexisting Chemical/Electrical/Shear Stress Stimuli

Designing Microfluidic Devices for Studying Cellular Responses Under Single or Coexisting Chemical/Electrical/Shear Stress Stimuli

Published on: August 13, 2016

Area of Science:

Fluid Dynamics
Microfluidics
Surface Chemistry

Background:

Electroosmotic flow (EOF) is driven by surface charge in microchannels.
Controlling shear flow within EOF is crucial for microfluidic applications.
Existing methods for shear flow control are limited.

Purpose of the Study:

To generate and study electroosmotic shear flow in microchannels.
To develop methods for controllable velocity gradients in microchannels.
To explore the potential of microchannels as in situ micro-rheometers.

Main Methods:

Chemically modifying channel walls with cationic polymers.
Electrically modifying channel walls using embedded gate electrodes.
Varying zeta potential via gate voltage to induce shear stress.

Main Results:

Achieved controllable shear flow by modifying surface potential.
Demonstrated tunable velocity gradients through chemical or electrical means.
Established a relationship between gate voltage, applied field, and shear stress.

Conclusions:

Electroosmotic shear flow can be effectively generated and controlled in microchannels.
Surface potential modification offers a versatile approach to manipulate microchannel flow.
The developed microchannel device shows promise as a micro-rheometer for lab-on-a-chip systems.