Strong electrostatic interactions in spherical colloidal systems.
@article{Messina2001StrongEI, title={Strong electrostatic interactions in spherical colloidal systems.}, author={Ren'e Messina and C Holm and Kurt Kremer}, journal={Physical review. E, Statistical, nonlinear, and soft matter physics}, year={2001}, volume={64 2 Pt 1}, pages={ 021405 } }
We investigate spherical macroions in the strong Coulomb coupling regime within the primitive model in salt-free environment. We first show that the ground state of an isolated colloid is naturally overcharged by simple electrostatic arguments illustrated by the Gillespie rule. We furthermore demonstrate that in the strong Coulomb coupling this mechanism leads to ionized states and thus to long range attractions between like-charged spheres. We use molecular dynamics simulations to study in…
47 Citations
Electrostatic correlations in colloidal suspensions: density profiles and effective charges beyond the Poisson-Boltzmann theory.
- PhysicsThe Journal of chemical physics
- 2009
A theory is proposed which allows to accurately calculate the osmotic pressure and the effective charge of colloidal particles with multivalent counterions around a colloidal particle using the cell model.
Interplay between Depletion and Electrostatic Interactions in Polyelectrolyte–Nanoparticle Systems
- Materials Science
- 2014
We use a numerical implementation of polymer self-consistent field theory to study the effective interactions between two spherical particles in polyelectrolyte solutions. We consider a model in…
Structure and correlations in two-dimensional classical artificial atoms confined by a Coulomb potential.
- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2003
The ordering of N equally charged particles (-e) moving in two dimensions and confined by a Coulomb potential, resulting from a displaced positive charge Ze is discussed, and the configurations of charged particles may result in ring structures, hexagonal-type configurations, and for N/Z approximately 1 in an inner structure of particles which is separated by an outer ring of particles.
Like-charge colloid-polyelectrolyte complexation
- Physics, Chemistry
- 2002
We investigate the complexation of a highly charged sphere with a long flexible polyelectrolyte, both negatively charged in a salt-free environment. Electroneutrality is insured by the presence of…
Correlations and fluctuations of charged colloids as determined by anomalous small-angle X-ray scattering
- Physics
- 2006
We performed molecular dynamics simulation of a charged colloidal particle with explicit counterions. Our work provides a direct comparison between simulations and ASAXS-experiments, offering insight…
Electrostatics in soft matter.
- Physics, ChemistryJournal of physics. Condensed matter : an Institute of Physics journal
- 2009
Recent progress in understanding the effect of electrostatics in soft matter is presented, and theoretical and simulational aspects, including the experimental motivations, will be discussed.
The Physics of Overcharging
- Physics
- 2005
In this article we review the two basic mechanisms responsible for overcharging a single spherical colloid in the presence of aqueous salts. The first mechanism rests on energetic arguments, and…
Density-functional theory of spherical electric double layers and zeta potentials of colloidal particles in restricted-primitive-model electrolyte solutions.
- PhysicsThe Journal of chemical physics
- 2004
The density-functional theory is able to capture the oscillatory density profiles of small ions and the charge inversion (overcharging) phenomena for particles with elevated charge density, and predicts the formation of a second counterion layer near the surface of highly charged spherical particle.
References
SHOWING 1-10 OF 57 REFERENCES
Electrostatic effects in soft matter and biophysics
- Chemistry
- 2001
Preface. List of Participants. Structure and dynamic properties of membrane lipid and protein M. Caffrey. Cell model and Poisson-Boltzmann theory: A brief introduction M. Deserno, C. Holm. DNA…
Theory of the Stability of Lyophobic Colloids
- ChemistryNature
- 1948
MANY of the classical investigations of colloidal chemistry were concerned with the stability of colloidal solutions of insoluble substances, such as gold, arsenic sulphide, silver halides, etc. The…
Principles of Modern Chemistry
- Chemistry
- 1986
Unit I Introduction to the study of modern chemistry. Unit II Kinetic molecular explanation of the states of matter. Unit III Equilibrium in chemical reactions. Unit IV Rates of chemical and physical…
I
- EngineeringEdinburgh Medical and Surgical Journal
- 1824
AIV Assembly, Integration, Verification AOA Angle of Attack CAD Computer Aided Design CFD Computational Fluid Dynamics GLOW Gross Lift-Off Mass GNC Guidance Navigation and Control IR Infra-Red LEO…
Phys
- Rev. E 60, 5802
- 1999
Phys. Rev. Lett
- Phys. Rev. Lett
- 2000
Europhys. Lett
- Europhys. Lett
- 2000
Europhys
- Lett. 51, 461
- 2000
Phys
- Rev. Lett. 85, 872
- 2000