Seminar
One Hundred Years of Electrified Interfaces: Past, Present and Future
Tuesday, April 5, 2016 10:30 AM;
JGU Mainz, Physics, Newton-Raum
Speaker: David Andelman; School of Physics and Astronomy, Tel Aviv University, Israel
The Poisson-Boltzmann theory is a mean-field description of ionic
solutions and charge interfaces, and it has been instrumental during the
last century to predict charge distributions and interactions between
charged macromolecules. While the electrostatic model of charged fluids,
on which the Poisson-Boltzmann description rests, and its statistical
mechanical consequences have been scrutinized in great detail, much less
is understood about its probable shortcomings when dealing with various
aspects of real physical, chemical and biological systems. After reviewing
the important results of the Poisson-Boltzmann theory, I will discuss
several modern extensions and modifications as applied to ions in confined
geometries. They include fluctuations and correlations leading to a
surprising attraction of like-charged surfaces, the importance of the
ion-dipole interaction in aqueous solutions, and finite size of ions and
other short-range interactions on ionic profiles and surface tension of
electrolyte solutions.
Calendar
Contact
- Scientific Coordinator of the TRR 146
- Dr. Giovanni Settanni
- Staudingerweg 9
- D-55128 Mainz
- trr146QW@KI_Kyqbuni-mainz.de