Related Experiment Video
Updated: Jan 26, 2026

Study of Short Peptide Adsorption on Solution Dispersed Inorganic Nanoparticles Using Depletion Method
Published on: April 11, 2020
Dispersion truncation affects the phase behavior of bulk and confined fluids: Coexistence, adsorption, and
Alexander Schlaich1, Benoit Coasne1
1Université Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France.
Abstract:
We present molecular simulations of bulk and confined Lennard-Jones fluids to assess the effect of dispersion truncation through a simple spherical cutoff. The latter is well corrected on a mean field level for bulk fluids if the cutoff distance is larger than about three molecular diameters. In confinement, however, there is no general analytical treatment, and thus, the truncated and shifted Lennard-Jones potential has to be employed, with drastic consequences on the bulk critical temperature, vapor/liquid coexistence pressure, and surface tension. We show using grand-canonical Monte-Carlo simulations of nitrogen adsorption in amorphous silica nanopores that the choice of the cutoff significantly modifies the pressure at which capillary condensation occurs and compute the capillary critical temperature in terms of a first order transition between an adsorbed film and filled pores.
Related Concept Videos
Phase Transitions
Phase Diagrams
Truncation in Survival Analysis
Left truncation occurs when individuals who experienced the event of interest before a certain time are not included in the study. This is often due to a "delayed entry" into the study where only those who survive until a certain entry point are...
Phase Transitions: Melting and Freezing
Distribution and Dispersion
Analyte Adsorption and Distribution

