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

Couette Flow

Couette Flow

Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...

Membrane Fluidity

Membrane Fluidity

Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
Mosaic nature of the membrane
The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is a relatively...

Membrane Fluidity

Membrane Fluidity

Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.Fatty acids tails of phospholipids can be either saturated or...

Steady, Laminar Flow Between Parallel Plates

Steady, Laminar Flow Between Parallel Plates

Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.

Fluid Mosaic Model

Fluid Mosaic Model

Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich with the analogy of...

Fluid Mosaic Model

Fluid Mosaic Model

The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.LipidsThe most...

You might also read

Related Articles

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

Sort by

Same author

Brownian motion of a rod threading through a ring with fixed ring-center.

The Journal of chemical physics·2026

Same author

Observing one-step melting pathway in two-dimensional hard circular particle system.

iScience·2025

Same author

Polymer sailing on rafts within lipid membranes.

Proceedings of the National Academy of Sciences of the United States of America·2025

Same author

Pattern dynamics of the nonreciprocal Swift-Hohenberg model.

Physical review. E·2024

Same author

Statistical formulation of the Onsager-Machlup variational principle.

Physical review. E·2024

Same author

Time-correlation functions of stochastic three-sphere micromachines.

Physical review. E·2024

Search research articles

Related Experiment Video

Updated: Jun 3, 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

Hydrodynamic coupling between two fluid membranes.

Sanoop Ramachandran¹, Shigeyuki Komura

¹Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Tokyo 192-0397, Japan.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|March 18, 2011

Summary

This summary is machine-generated.

We studied how particles move and interact within stacked fluid membranes. Hydrodynamic coupling influences their diffusion, affecting movement within and between membranes.

More Related Videos

SNARE-mediated Fusion of Single Proteoliposomes with Tethered Supported Bilayers in a Microfluidic Flow Cell Monitored by Polarized TIRF Microscopy

SNARE-mediated Fusion of Single Proteoliposomes with Tethered Supported Bilayers in a Microfluidic Flow Cell Monitored by Polarized TIRF Microscopy

Published on: August 24, 2016

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Published on: September 1, 2023

Related Experiment Videos

Last Updated: Jun 3, 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

SNARE-mediated Fusion of Single Proteoliposomes with Tethered Supported Bilayers in a Microfluidic Flow Cell Monitored by Polarized TIRF Microscopy

SNARE-mediated Fusion of Single Proteoliposomes with Tethered Supported Bilayers in a Microfluidic Flow Cell Monitored by Polarized TIRF Microscopy

Published on: August 24, 2016

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Published on: September 1, 2023

Area of Science:

Fluid dynamics
Soft matter physics
Statistical mechanics

Background:

Particle diffusion in membranes is crucial for biological and synthetic systems.
Understanding coupled dynamics in confined geometries is an ongoing challenge.
Hydrodynamic interactions significantly influence particle motion in fluids.

Purpose of the Study:

To investigate the coupled in-plane diffusion dynamics of point-particles in stacked fluid membranes.
To quantify the contributions of intra- and inter-membrane particle motion to diffusion coefficients.
To elucidate the role of hydrodynamic coupling in stacked membrane systems.

Main Methods:

Theoretical calculation of coupled longitudinal and transverse diffusion coefficients.
Analysis of particle motion within individual and across stacked membranes.
Modeling of hydrodynamic interactions mediated by the stacked membrane geometry.

Main Results:

Identified distinct contributions to diffusion coefficients from motion within the same and different membranes.
Quantified the influence of stacked geometry on hydrodynamic coupling.
Demonstrated that hydrodynamic coupling affects both longitudinal and transverse diffusion.

Conclusions:

The stacked membrane geometry induces significant hydrodynamic coupling between membranes.
Particle motion dynamics are intricately linked through hydrodynamic interactions in this system.
This study provides a theoretical framework for understanding diffusion in multi-membrane systems.