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Van der Waals Interactions

Van der Waals Interactions

Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.

Van der Waals Equation

Van der Waals Equation

The ideal gas law is an approximation that works well at high temperatures and low pressures. The van der Waals equation of state (named after the Dutch physicist Johannes van der Waals, 1837−1923) improves it by considering two factors.
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the volume...

Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation

Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation

Thus far, the ideal gas law, PV = nRT, has been applied to a variety of different types of problems, ranging from reaction stoichiometry and empirical and molecular formula problems to determining the density and molar mass of a gas. However, the behavior of a gas is often non-ideal, meaning that the observed relationships between its pressure, volume, and temperature are not accurately described by the gas laws.

Protein Folding

Protein Folding

Protein Complex Assembly

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...

Protein Complex Assembly

Protein Complex Assembly

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Related Experiment Video

Updated: Jan 20, 2026

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

Van der Waals Potential in Protein Complexes.

Gabriela Bitencourt-Ferreira¹, Martina Veit-Acosta¹, Walter Filgueira de Azevedo²

¹Escola de Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul-PUCRS, Porto Alegre, RS, Brazil.

Methods in Molecular Biology (Clifton, N.J.)

|August 28, 2019

Summary

This summary is machine-generated.

Van der Waals forces, crucial for protein-ligand binding, can be accurately estimated using the Lennard-Jones potential. This model aids molecular docking and virtual screening, improving the understanding of binding affinity.

Keywords:

Binding affinity Drug design Lennard-Jones potential Shikimate pathway van der Waals interactions

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Area of Science:

Computational chemistry
Molecular modeling
Biophysics

Background:

Van der Waals forces significantly influence protein-ligand complex formation.
Accurate estimation of these forces is vital for drug discovery and molecular recognition.
The Lennard-Jones potential is a widely used physical model for approximating van der Waals interactions.

Purpose of the Study:

To explain the fundamental concepts of van der Waals interactions in molecular recognition.
To detail the Lennard-Jones potential and its application in calculating interaction energies.
To emphasize the role of van der Waals forces in determining binding affinity.

Main Methods:

Utilizing the Lennard-Jones potential to model van der Waals interactions.
Applying computational methods for molecular docking simulations.
Analyzing potential energy calculations for ensembles of protein-ligand structures.

Main Results:

The Lennard-Jones potential provides accurate estimations of van der Waals interactions.
This model's computational efficiency facilitates large-scale virtual screening.
Understanding these interactions is key to predicting binding affinity.

Conclusions:

Van der Waals forces, modeled by the Lennard-Jones potential, are critical for protein-ligand binding.
The Lennard-Jones potential is a valuable tool for molecular docking and virtual screening.
Accurate modeling of these interactions enhances the prediction of binding affinity.