Biomacromolecular Systems and Processes

We investigate the collective behaviour of systems consisting of interacting biomacromolecules, red blood cells, and novel thermosensitive DNA hybrid particles. Our aim is to gain a fundamental quantitative understanding of their phase and transport behaviour, and their biological functions. For this purpose, we analyse the systems for realistically high concentrations of their components under non-equilibrium conditions due to concentration and temperature gradients, flow, electric fields and spatial confinement. Our main research techniques are advanced microscopy and scattering methods, rheology and microfluidics, as well as theoretical methods and computer simulations.

News and Events

New IBI-4 article in J. Chem. Phys.: When bigger is faster

New IBI-4 article in J. Chem. Phys.: When bigger is faster 

Generally, it is assumed that big particles diffuse slower than small particles. In a recent feature article of JCP we show that this assumption does not always hold.

Soft Matter Matters Brochure

“Soft-Matter-Matters!” – Brochure

In the frame work of the EU funded research infrastructure project EUSMI, IBI-4 issued an experiment brochure together with the Forschungszentrum Students Lab, JuLab.


International Helmholtz Research School

Intense training in Biophysics and Soft Matter and a comprehensive framework of experimental and theoretical tools. More

Focus DiStruc


DiStruc ("Directed Structure") is a Marie Skołdowska-Curie Innovative Training Network (ITN-ETN). The goal of DiStruc is to understand structure formation in dispersions of anisotropic colloidal particles by confinement and flow.

Logo_DPG D-A-CH Project

Project under the D-A-CH Lead Agency Agreement

This is a so-called DPG-D-A-CH project. Experiments and computer simulations are combined to gain a  fundamental understanding of the self-assembly and micro-structural ordering of dendrimers which solely consist of DNA, both in bulk suspensions and at interfaces.


European Soft Matter Infrastructure

ESMI changes to EUSMI: There is good news for the European Soft Matter community: The Grant Agreement for EUSMI, the designated successor project of ESMI was signed on 30 April 2017.



Within the JARA research alliance, the JARA-SOFT group undertakes multi-disciplinary soft matter research to address current open questions in material sciences and biophysics.



The Collaborative Research Centre 985 includes physical chemistry and process engineering groups at RWTH Aachen University and Soft Matter groups at Forschungszentrum Jülich (IAS-2, IBI-4 and JCNS-1).



Softcomp was born as a Network of Excellence (NoE) supported by the EU aiming to establish a knowledge base for an intellegent design of functional and nanoscale soft matter composites.