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

You might also read

Related Articles

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

Sort by

Same author

Thermoresponsive Copolymer Microgels Synthesized via Single-Step Precipitation Polymerization: Random or Block Structure?

Small (Weinheim an der Bergstrasse, Germany)·2025

Same author

Charge Scaling Force Field for Biologically Relevant Ions Utilizing a Global Optimization Method.

Journal of chemical theory and computation·2025

Same author

Investigating temperature-induced unfolding pathways of DNA G-quadruplexes via 2D UV resonant Raman spectroscopy.

International journal of biological macromolecules·2025

Same author

Cation-π Interactions in Biomolecular Contexts by Neutron Scattering and Molecular Dynamics: A Case Study of the Tetramethylammonium Cation.

The journal of physical chemistry. B·2025

Same author

Gellan-based hydrogels and microgels: A rheological perspective.

Carbohydrate polymers·2025

Same author

Ion pairing in aqueous tetramethylammonium-acetate solutions by neutron scattering and molecular dynamics simulations.

Physical chemistry chemical physics : PCCP·2025

Search research articles

Related Experiment Video

Updated: May 30, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Molecular dynamics simulation studies of caffeine aggregation in aqueous solution.

Letizia Tavagnacco¹, Udo Schnupf, Philip E Mason

¹Department of Life Sciences, University of Trieste, 34127 Trieste, Italy.

The Journal of Physical Chemistry. B

|August 5, 2011

Summary

Molecular dynamics simulations reveal caffeine molecules aggregate in water by stacking flat faces. This observed stacking interaction accurately represents caffeine association in aqueous solutions near its solubility limit.

More Related Videos

Deciphering the Structural Effects of Activating EGFR Somatic Mutations with Molecular Dynamics Simulation

Deciphering the Structural Effects of Activating EGFR Somatic Mutations with Molecular Dynamics Simulation

Published on: May 20, 2020

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

Published on: September 17, 2021

Related Experiment Videos

Last Updated: May 30, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Deciphering the Structural Effects of Activating EGFR Somatic Mutations with Molecular Dynamics Simulation

Deciphering the Structural Effects of Activating EGFR Somatic Mutations with Molecular Dynamics Simulation

Published on: May 20, 2020

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

Published on: September 17, 2021

Area of Science:

Physical Chemistry
Computational Chemistry
Biophysics

Background:

Caffeine is a widely consumed stimulant with complex behavior in aqueous solutions.
Understanding caffeine's aggregation mechanism is crucial for its pharmaceutical and physiological applications.
Previous studies have not fully elucidated the molecular interactions driving caffeine self-assembly in water.

Purpose of the Study:

To investigate the aggregation behavior and molecular interactions of caffeine in aqueous solutions using molecular dynamics simulations.
To develop and validate a new CHARMM-type force field for caffeine in water.
To compare simulation results with experimental thermodynamic data, specifically the osmotic coefficient.

Main Methods:

Molecular dynamics (MD) simulations of eight caffeine molecules in a water box at 300 K.
Simulations of single caffeine molecules in water using TIP3P and TIP4P water models.
Analysis of water structuring around caffeine and caffeine-caffeine aggregation patterns.

Main Results:

Water molecules form a complex, model-insensitive structure around planar caffeine molecules.
Extensive caffeine aggregation was observed, characterized by face-to-face stacking similar to coins.
A dynamic equilibrium between various aggregate sizes (n-mers) was identified, consistent with experimental osmotic coefficients.

Conclusions:

The developed CHARMM-type force field accurately captures caffeine-water interactions and aggregation.
Caffeine molecules primarily associate in aqueous solutions through face-to-face stacking, driven by hydrophobic and van der Waals forces.
The simulation results provide a realistic molecular-level understanding of caffeine self-assembly in solution.