Projekte

05. Oktober 2016
Mixtures of nanoparticles and proteins tend to form hybrid agglomerates. We are interested in the agglomeration mechanisms and the structure of such agglomerates to better understand their role in medicine, ecology, and biomaterials.
05. Oktober 2016
Nanoparticles that are trapped in emulsion droplets react to their confinement depending on the surfactant. Some of them form beautifully ordered "supraparticles", fully defined structures that remind of noble gas condensates or small metal clusters. We study how nanoparticles interact with each other and liquid-liquid interfaces in this DFG-funded project. Tanja Schilling at the University of Luxembourg use simulations to predict and understand structure formation, we explore it experimentally.References
05. Oktober 2016
Field-flow fractionation can fractionate particles after size, but it is often plagued by losses of particles due to adsorption and agglomeration. This AiF-ZIMM-project (supported by the BMWi) aims to reduce such losses and make FFF suitable as a standard technique for nanoparticle detection in products, the environment, and food.
05. Oktober 2016
Digital imagers for medical X-ray are based on ceramic layers. This project is a BMBF-funded effort, coordinated by Siemens, to build X-ray imagers based on a new material that contains conductive polymers and inorganic particles. The particles absorb and convert X-ray photons, the polymer transports the charges to electrodes. The Structure Formation Group is mainly concerned with the analysis of the particle-polymer composites' structures, its origins in fabrication, and its effect on detector performance.
05. Oktober 2016
Interactions drives particles to agglomerate, mobility allows them to follow this drive. We use flow setups and synchrotron Small-Angle X-ray Scattering (SAXS) to study early stages of agglomeration. The results help us to better understand the formation of composites, crystallization mechanisms, and biomineralization phenomena.Referenceshttp://link.aps.org/doi/10.1103/PhysRevE.87.062313http://dx.doi.org/10.1103/PhysRevLett.109.128302
05. Oktober 2016
Flexible and printed electronics require new material. Here, we focus on optically transparent materials for the electronics of the future. This BMBF-funded research project, a part of the NanoMatFutur initiative, uses nanoparticles with defined shapes and arrangements inside polymers to make transparent electrodes for touch-screen display or solar cells, for example. Chemists, material scientists and an engineer collaborate very closely in a team to create new materials that can be processed with well-established wet coating and printing techniques.
05. Oktober 2016
Small particles play a large role in modern steel. The Dilliger Hütte, a steel mill in Saarland, collaborates with us to analyse these particles using methods that we developed for colloidal particles and that are not usually employed in metallography.