Physics of Complex Fluids Group

The research goal of PCF is to understand and to control liquids and their interfaces from molecular to macroscopic scales. Our research connects fundamental phenomena in static and dynamic wetting, nanofluidics, microfluidic two-phase flow, functional surfaces, drop impact, and drop evaporation to practically relevant applications such as enhanced oil recovery, lab-on-a-chip systems, analytical chemistry (MALDI-MS), optofluidics, and inkjet printing.

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Experimental methods and tools: electrowetting, high resolution Atomic Force Microscopy and spectroscopy, (high speed) video microscopy, contact angle goniometry, particle tracking microrheology, macroscopic rheometry, (imaging) ellipsometry, quartz crystal microbalance, Langmuir trough and Langmuir-Blodgett deposition.

Latest news

Wedge-wetting: new publication in Soft Matter featured on Front Cover

The equilibrium morphology of liquid drops exposed to geometric constraints can be rather complex. Even for simple geometries, analytical solutions are scarce. In our new work ... ... read more

Sept. 2015: charge regulation in AFM measurements - new publication in Nanoscale

Solid surfaces immersed in aqueous solutions almost invariably acquire a finite surface charge. PCF has been developing systematic methods to measure electrostatic forces in ambient electrolytes for several years. ... read more

Stability limits of capillary bridges: new publication in Physical Review Letters

The morphology of liquid drops on the micrometer scale is governed by the geometry and the wettability of surrounding surfaces. These boundary conditions can lead to rather complex energy landscapes, frequently with multiple local minima corresponding to competing liquid morphologies. In collaboration with Ciro Semprebon and Martin Brinkmann from the Max-Planck-Institute for Dynamics and Self Organization, ... read more

New (Chemical) Industrial Partnership Program (CH)IPP started

FOM, NWO/CW and BP started a new program on fundamental physical and chemical aspects of enhanced oil recovery under the coordination of Frieder Mugele. Building on an earlier bilateral collaboration between the PCF group and BP, ... read more

Jolet de Ruiter obtained a Rubicon grant from NWO