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

Diffusion01:21

Diffusion

5.6K
Diffusion is a type of passive transport. In passive transport, a substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. For example, take the diffusion of substances through the air. When someone opens a perfume bottle in a room filled with people, the perfume is at its highest concentration in the bottle and is at its lowest at the edges of the room. The perfume vapor will diffuse, or spread away, from the...
5.6K
Carrier Transport01:21

Carrier Transport

631
The generation of electrical current in semiconductors is fundamentally driven by two mechanisms: drift and diffusion. These processes are essential for the functionality and performance of semiconductor-based devices.
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
631
Passive Diffusion: Overview and Kinetics01:17

Passive Diffusion: Overview and Kinetics

881
Passive diffusion is a critical process that allows small lipophilic drugs to cross the cell membrane along a concentration gradient. This mechanism's efficiency depends on four primary factors: the membrane's surface area, the drug's lipid-water partition coefficient, the concentration gradient, and the membrane's thickness.
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
881
Genetic Drift03:33

Genetic Drift

41.4K
Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
41.4K
Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion03:48

Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion

29.9K
Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many different directions before reaching the desired target. At room temperature, a gaseous molecule will experience billions of collisions per second. The mean free path is the average distance a molecule travels between collisions. The mean free path increases with decreasing pressure; in general, the mean free path for a gaseous molecule will be...
29.9K
Protein Diffusion in the Membrane01:24

Protein Diffusion in the Membrane

4.9K
Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...
4.9K

You might also read

Related Articles

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

Sort by
Same author

Hysteretic Conductance in Ion Channel Gating.

Entropy (Basel, Switzerland)·2026
Same author

Hitting the blinking target under stochastic resetting.

Chaos (Woodbury, N.Y.)·2026
Same author

Confinement reveals hidden splay-bend order in twist-bend nematics.

Physical review. E·2026
Same author

Overdamped diffusion through a channel of varying cross-section.

Physical review. E·2026
Same author

Comment on "Coarsening in bent-core liquid crystals: a molecular dynamics study" by N. Birdi, N. B. Wilding, S. Puri and V. Banerjee, <i>Soft Matter</i>, 2025, <b>21</b>, 4606.

Soft matter·2026
Same author

Relationship between the Size of Bent-Shaped Molecules and Mesophase Formation: A Computational Study.

The journal of physical chemistry. B·2025
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Oct 13, 2025

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

8.8K

Diffusion in crowded environments: Trapped by the drift.

Piotr Kubala1, Michał Cieśla1, Bartłomiej Dybiec1

  • 1Institute of Theoretical Physics, Department of Statistical Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland.

Physical Review. E
|November 16, 2021
PubMed
Summary
This summary is machine-generated.

A constant drift in crowded environments increases particle trapping, altering diffusion patterns. This interplay can lead to both superdiffusive and subdiffusive motion, with drift enhancing subdiffusion signatures.

More Related Videos

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
10:07

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

6.3K
Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy
12:15

Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy

Published on: April 9, 2019

8.9K

Related Experiment Videos

Last Updated: Oct 13, 2025

The Diffusion of Passive Tracers in Laminar Shear Flow
08:01

The Diffusion of Passive Tracers in Laminar Shear Flow

Published on: May 1, 2018

8.8K
Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
10:07

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

6.3K
Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy
12:15

Image Processing Protocol for the Analysis of the Diffusion and Cluster Size of Membrane Receptors by Fluorescence Microscopy

Published on: April 9, 2019

8.9K

Area of Science:

  • Physics
  • Statistical Mechanics
  • Complex Systems

Background:

  • Diffusion dynamics are influenced by both microscopic processes and environmental characteristics, such as fractal structures and obstacles.
  • Fractal environments can induce subdiffusive scaling in mean square displacement due to constraints on particle movement.

Purpose of the Study:

  • To investigate the impact of a constant drift on diffusion properties within a crowded environment.
  • To understand how drift interacts with environmental complexity to modify diffusion behavior.

Main Methods:

  • Analysis of particle trajectories in a simulated crowded environment with fractal properties.
  • Mathematical modeling to study the effects of constant drift on diffusion dynamics.
  • Calculation of time-averaged mean square displacement to characterize diffusion patterns.

Main Results:

  • Constant drift increases the probability of particle trapping, suppressing ballistic motion.
  • Diffusion becomes anisotropic due to the drift-induced preferred direction, modified by environmental interactions.
  • Individual trajectories exhibit high variability, influencing the macroscopic diffusion front.
  • The interplay of drift, diffusion, and environment leads to both superdiffusive and subdiffusive behaviors within the same system.

Conclusions:

  • Constant drift significantly alters diffusion in crowded environments, promoting anisotropy and trapping.
  • Drift can enhance subdiffusive signatures by increasing trapping events, contrasting with free motion.
  • The study highlights the complex emergent behaviors arising from the interaction of drift, diffusion, and environmental factors.