The hydrodynamic properties of bubbles and drops with adsorbed substances is essentially different from ideally pure systems. Particles or large adsorbed molecules strongly interact in the adsorbed layer.

Droplet or bubble coalescence is a highly dynamic process involving different length scales. Adsorbed surfactants or the presence of particles strongly affect the hydrodynamics and film stability during coalescence.

Surfaces can be functionalized by engineering the surface structure and/or chemistry. This allows to control interfacial processes like wetting/dewetting, bubble nucleation or attachment/detachment.

Multiphase radial reaction fronts form when one reactant is injected from a central point into the other one and a radially spreading product phase forms, e.g. by precipitation or phase se­paration.

We perform nano/micro-scale modeling of fluid dynamics and mass transport in phase change processes involving solid walls.

The Cen­ter of Interface Studies (CIS) has set itself the goal of advancing interface research through interdisciplinary collaboration. Founded by three institutes of the HZDR, it integrates different methods and expertise to develop a comprehensive understanding of interface phenomena.