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

Physical Principles Governing Gas Exchange01:16

Physical Principles Governing Gas Exchange

2.3K
Gas behavior plays a vital role in understanding bodily processes such as external and internal respiration. External respiration involves the diffusion of oxygen into the blood and carbon dioxide out of it in the lungs. In contrast, internal respiration happens in body tissues, where these gases move in opposite directions.
Gas Laws Governing Respiration
The behavior of gases is guided by Dalton's Law of partial pressures and Henry's Law.
Dalton's Law asserts that the total...
2.3K
Gas Exchange and Transport01:20

Gas Exchange and Transport

72.0K
Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
72.0K
Plane Potential Flows01:23

Plane Potential Flows

480
Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
480
Couette Flow01:22

Couette Flow

502
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...
502
Gauss's Law: Planar Symmetry01:27

Gauss's Law: Planar Symmetry

8.5K
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
8.5K
Frictional Forces on Flat Belts01:28

Frictional Forces on Flat Belts

1.1K
Flat belts are commonly used in various industrial applications for transmitting power from one pulley to another. When a flat belt is wrapped around a set of pulleys, it experiences different tensions at the driving pulley ends due to the friction between the belt and pulley surface. When the pulley moves in a counterclockwise direction, the tension T2 on the opposite side of the pulley where the belt is moving away from is higher than the tension T1 on the side where the belt is moving...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Helicity of a confined bottlebrush ring polymer.

Macromolecules·2026
Same author

Mobile Grafts Allow Polymers to Escape Confinement.

ACS macro letters·2026
Same author

Phase behavior, self-assembly, and interfacial tension of a dynamically linked polymer blend.

The Journal of chemical physics·2026
Same author

Fracture of polymer-like networks with hybrid bond strengths.

Journal of the mechanics and physics of solids·2026
Same author

Processing-Driven Control of the Properties of Polymer Grafted Nanoparticle Composites.

ACS nano·2026
Same author

Molecular Simulations of Phase Separation in Elastic Polymer Networks.

The journal of physical chemistry. B·2026

Related Experiment Video

Updated: Oct 1, 2025

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.2K

Gas Transport in Interacting Planar Brushes.

Sabin Adhikari1, Arash Nikoubashman2, Ludwik Leibler3

  • 1Department of Chemical Engineering, Columbia University, New York, NY 10027, USA.

ACS Polymers Au
|March 7, 2022
PubMed
Summary
This summary is machine-generated.

Polymer brushes with nanoparticles enhance gas transport by creating fast-transport regions near surfaces. Gas molecules exhibit hop-like motions, leading to overall accelerated dynamics compared to neat polymers.

More Related Videos

An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints
08:42

An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints

Published on: August 29, 2014

8.5K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.3K

Related Experiment Videos

Last Updated: Oct 1, 2025

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.2K
An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints
08:42

An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints

Published on: August 29, 2014

8.5K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.3K

Area of Science:

  • Materials Science
  • Polymer Physics
  • Chemical Engineering

Background:

  • Experiments show enhanced gas transport in nanoparticle-polymer melts.
  • Understanding the underlying mechanisms requires simplified models.

Purpose of the Study:

  • Investigate gas transport in planar polymer brushes simulating a polymer melt.
  • Explain the enhanced gas transport observed in nanoparticle-grafted polymer systems.

Main Methods:

  • Utilized computer simulations of two interacting planar brushes.
  • Modeled conditions representing a polymer melt below its critical point.
  • Employed tracer particles to represent gas molecules.

Main Results:

  • Simulations show a slightly increased polymer melt density near walls.
  • Gas tracer particles preferentially segregate to the grafting surface.
  • Brush layers act as heterogeneous transport media with accelerated dynamics near surfaces and slower dynamics centrally.

Conclusions:

  • The observed gas transport enhancement is attributed to heterogeneous dynamics and hop-like motions of gas molecules.
  • These findings align with experimental observations of accelerated gas dynamics in nanoparticle-polymer melts.