Track topics on Twitter Track topics that are important to you
Repulsive electrostatic double-layer forces are responsible for the stabilization of charged colloidal particles in the presence of adsorbed polyelectrolytes of opposite and high line charge densities. This mechanism is revealed by studies of electrophoretic mobility and colloidal stability performed with dynamic light scattering as a function of the polyelectrolyte dose and the ionic strength for two different types of latex particles and four different types of polyelectrolytes. The dependence of these quantities is very similar for bare charged latex particles and the same particles in the presence of the different oppositely charged polyelectrolytes. Positively charged particles in the presence of anionic polyelectrolytes behave analogously to negatively charged particles in the presence of cationic polyelectrolytes.
Department of Inorganic, Analytical, and Applied Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1205 Geneva, Switzerland.
This article was published in the following journal.
Name: Langmuir : the ACS journal of surfaces and colloids
We study, using Monte Carlo simulations, the interaction between charged colloidal particles confined to the air-water interface. The dependence of force on ionic strength and counterion valence is ex...
We report on the controlled clustering of charged colloidal particles by the adsorption of ionic surfactants, which tunes charge numbers Z of partilces. In particular, we studied the heteroclustering ...
In this perspective we examine recent theoretical developments in methods for calculating the electrostatic properties of charged particles of dielectric materials. Particular attention is paid to the...
The adsorption of particles to the fluid-fluid interface is a key factor for the stabilization of fluid-fluid interfaces such as those found in emulsions, foams and bijels. However, for the formation ...
Polymer chains grafted onto nanoparticles may facilitate the dispersion of such particles in a polymer solution. We explore the optimal strategy for stabilising polymer-grafted nanoparticles using sel...
Combined inhaled treatment with long acting adrenergics and steroids in an unique inhaler plays an important role in the management of non-mild asthma. Some studies have demonstrated that ...
Background: There is no evidence that shoulder stabilization effectively corrects the glenohumeral translation in unstable shoulders, explaining residual apprehension in certain patients. ...
The objective of this 1 week trial is to evaluate the efficacy of an over-the-counter (OTC) 1% colloidal oatmeal skin protectant cream in adults and children with mild to moderate AD.
To compare the seroprotection rates and booster responses to Canadian-manufactured Tetanus and Diphtheria Toxoids Adsorbed to the seroprotection rates and booster responses to the US-manuf...
This single-center, open-label, phase 2 study will evaluate the anti-tumor activity, as well as the safety and pharmacokinetics, of Panzem (2-methoxyestradiol, 2ME2) Nanocrystal Colloidal ...
Characteristics of ELECTRICITY and magnetism such as charged particles and the properties and behavior of charged particles, and other phenomena related to or associated with electromagnetism.
Passive agglutination tests in which antigen is adsorbed onto latex particles which then clump in the presence of antibody specific for the adsorbed antigen. (From Stedman, 26th ed)
Positively charged particles composed of two protons and two NEUTRONS, i.e. equivalent to HELIUM nuclei, which are emitted during disintegration of heavy ISOTOPES. Alpha rays have very strong ionizing power, but weak penetrability.
A phenomenon manifested by an agent or substance adhering to or being adsorbed on the surface of a red blood cell, as tuberculin can be adsorbed on red blood cells under certain conditions. (Stedman, 25th ed)
Devices for accelerating charged particles in a spiral path by a constant-frequency alternating electric field. This electric field is synchronized with the movement of the particles in a constant magnetic field.