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

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...

Determination of Molar Masses of Polymers II

Determination of Molar Masses of Polymers II

Polymer samples typically consist of macromolecular chains with a distribution of lengths, resulting in a range of molar masses rather than a single discrete value. Conventional descriptors such as the number-average molar mass and weight-average molar mass quantify this distribution but do not fully capture polymer behavior in solution..The viscosity-average molar mass provides a more realistic description of polymer behavior in solution because it accounts for the enhanced contribution of...

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...

Surface Tension

Surface Tension

Surface tension is defined as the force per unit length (γ) acting along the surface of a liquid. It arises due to strong intermolecular forces of attraction. A molecule located inside the bulk of the liquid is surrounded by other molecules and experiences equal forces in all directions. However, a molecule at the surface experiences unbalanced forces because there are more neighboring molecules below than above. This creates a net inward force that pulls surface molecules toward the interior,...

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...

Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model

Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model

Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the concentration...

You might also read

Related Articles

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

Sort by

Same author

Multicenter Clinical Validation of an Artificial Intelligence Diagnostic Classification Model for Laryngoscopy Images.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery·2026

Same author

The Protein Force Field Plays a Crucial Role in Obtaining Accurate Macromolecular Ensembles of IDPs.

Journal of chemical theory and computation·2026

Same author

Characterization of kerogen nanopores using 2D NMR relaxation and MD simulations.

Magnetic resonance letters·2025

Same author

Extended molecular eigenmodes treatment of dipole-dipole NMR relaxation in real fluids.

The Journal of chemical physics·2025

Same author

Role of m<sup>6</sup>A mRNA Methylation in Plant Defense.

Epigenomes·2025

Same author

Molecular-Level Insights into the NMR Relaxivity of Gadobutrol Using Quantum and Classical Molecular Simulations.

Chemical & biomedical imaging·2025

Search research articles

Related Experiment Video

Updated: Jul 5, 2026

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

Modified interfacial statistical associating fluid theory: application to tethered polymer chains.

Shekhar Jain¹, Prasanna Jog, Jeffrey Weinhold

¹Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA. sjain@rice.edu

The Journal of Chemical Physics

|April 25, 2008

Summary

This study enhances polymer brush theory to accurately predict polymer brush structures and heights, outperforming existing scaling theories by capturing segment interactions.

More Related Videos

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy

Published on: February 27, 2015

Related Experiment Videos

Last Updated: Jul 5, 2026

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

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy

Published on: February 27, 2015

Area of Science:

Polymer Physics
Statistical Mechanics
Computational Chemistry

Background:

Polymer brushes are crucial in surface modification and nanotechnology.
Existing theories often struggle to accurately predict detailed polymer brush structures.
Understanding segment-segment interactions is key to modeling polymer behavior.

Purpose of the Study:

To extend modified interfacial statistical associating fluid theory-density functional theory (SAFT-DFT) for tethered polymer chains.
To accurately predict the structure and height of polymer brushes.
To investigate the influence of free polymer chains and segment interactions.

Main Methods:

Application of modified interfacial SAFT-DFT to tethered polymer chains.
Calculation of polymer brush structures in both 'dry' and 'wet' conditions.
Comparison of theoretical predictions with existing simulation data.

Main Results:

The SAFT-DFT model accurately predicts the detailed structure of tethered polymer brushes.
Calculated average brush heights align with established scaling theories.
The theory effectively captures the impact of segment-segment interactions between tethered and free polymers.
SAFT-DFT provides more accurate structural predictions than traditional scaling theories.

Conclusions:

Modified interfacial SAFT-DFT is a powerful tool for modeling polymer brushes.
The theory offers superior accuracy in predicting polymer brush structure compared to scaling theories.
This work advances the understanding of polymer brush behavior under various conditions.