Related Experiment Video
Updated: Jul 18, 2026

Investigating Single Molecule Adhesion by Atomic Force Spectroscopy
Published on: February 27, 2015
Characterization limits of a polymer adsorbed under a monolayer by GIXD measurements
Fabrice Goubard1, Odile Fichet, Dominique Teyssié
1Université de Cergy-Pontoise, LPPI, 5 mail Gay-Lussac Neuville-sur-Oise, 95031 Cergy-Pontoise Cedex, France.
Abstract:
The study of interactions between a polyelectrolyte (sodium polystyrene sulfonate, PSSt) or its water-soluble monomer (SSt) at different concentrations and a monolayer of dioctadecyldimethylammonium bromide (DODA) has been investigated. The monolayer phase behavior and structure at the air-water interface were studied by surface pressure-area isotherms and grazing incidence X-ray diffraction measurements. DODA molecules organize following a rectangular unit cell in all three subphases (pure water, water containing SSt or PSSt). The presence of polyelectrolytes in the subphase decreases, on one hand, the tilt angle and the mean area per molecule in the condensed phase, revealing a higher 2D density in this state, and, on the other hand, the amount of organized matter.
More Related Videos
08:29Au-Interaction of Slp1 Polymers and Monolayer from Lysinibacillus sphaericus JG-B53 - QCM-D, ICP-MS and AFM as Tools for Biomolecule-metal Studies
Published on: January 19, 2016
09:43Study of Short Peptide Adsorption on Solution Dispersed Inorganic Nanoparticles Using Depletion Method
Published on: April 11, 2020
Related Concept Videos
Adsorption Isotherms I
Adsorption Isotherms II
Adsorption of Gases on Solids
Determination of Molar Masses of Polymers II
Determination of Molar Masses of Polymers I
Analyte Adsorption and Distribution