Related Experiment Video
Updated: Aug 29, 2026

Monitoring Protein Adsorption with Solid-state Nanopores
Published on: December 2, 2011
Systematic model behavior of adsorption on flat surfaces
R A Trasca1, M W Cole, R D Diehl
1Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Abstract:
A low density film on a flat surface is described by an expansion involving the first four virial coefficients. The first coefficient (alone) yields the Henry's law regime, while the next three terms in the expansion correct for the effects of adsorbate-adsorbate interactions, computed within the two-dimensional approximation (a film confined nearly to a plane). The results permit exploration of the idea of universal adsorption behavior, which is compared with experimental data for a number of systems. The idea works well, in general, justifying a general model of adsorption at low to moderate coverage.
Related Concept Videos
Adsorption Isotherms I
Adsorption Isotherms II
Adsorption of Gases on Solids
Heterogeneous Catalysis
Analyte Adsorption and Distribution
Surface Active Agents

