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Charging of neutral solutes in water

Presented by: 
Douwe Jan Bonthuis Freie Universität Berlin, Graz University of Technology
Date: 
Friday 17th May 2019 - 11:10 to 11:50
Venue: 
INI Seminar Room 1
Abstract: 
Owing to the small length scales involved, aqueous interfaces dominate the properties of colloidal materials suspended in water. Surface charges, in particular, control the stability of colloidal suspensions and the self-assembly and organization of nanoparticles. Apart from charging by surface groups, ions and protons adsorb at the surfaces of colloids, lipid membranes and biological molecules, affecting their electrostatic and hydrodynamic interactions.

We study the interfacial structure of the aqueous interfaces of oil droplets, air bubbles and solid surfaces. A combination of analytical work, molecular dynamics simulations and continuum theory allows for direct comparison to experimental results for surface tensions, conductivities and electrokinetic mobilities.
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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons