Peter R. Lang
Forschungszentrum Jülich and HHU Düsseldorf
Research topics
Main research interests include colloid and polymer science, scattering methods, colloidal dynamics, colloidal interactions.
Biomacromolecular Systems and Processes
The Institute of Biomacromolecular Systems and Processes investigates 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.
Dynamics and interaction of (bio)macromolecular systems at and in interfaces
The properties of synthetic and biological nanoscopic particles suspended in solvents differ significantly in the immediate vicinity of an interface from their behaviour in the bulk. These changes are caused by static and hydrodynamic interactions between the particles and the interface and ultimately lead to interface-induced changes in macroscopic material properties such as rheology or phase behaviour.
We investigate the underlying mechanisms on the nanometre scale of biological, or biologically inspired and synthetically tailored model systems using computer simulations and interface-sensitive scattering techniques.
More
Vita Prof. Peter Lang | |
|---|---|
Since 10/2022 | Acting Head IBI-4 |
2017-2022 | Deputy Head of IBI-4 |
Since 2017 | Professor (apl) for Experimental Physics at HHU - Düsseldorf |
2011-2021 | Manager/Coordinator of the EU funded research infrastructure projects ESMI and EUSMI |
2012 - 2016 | Coordinator of the Marie Skłodowska Curie Initial Training Networks SOMATAI. |
2000 - 2022 | Scienitfic staff member at Forschungszentrum Jülich |
1992 - 2000 | Scientific Assistant at TU-Berlin, Physical Chemistry |
1991 - 1992 | Postdoc at the Kyoto Institute of Technology, Kyoto, Japan |
1987 - 1991 | PhD-student at Universitá La Sapienza, Rome, Italy and Albert-Ludwigs - Universität Freiburg |
A selection of recent publications
Dimensions of Cellulose Nanocrystals from Cotton and Bacterial Cellulose: Comparison of Microscopy and Scattering Techniques V. Grachev et al. Nanomaterials14(5), 455- (2024). DOI: 10.3390/nano14050455
Size, Diffusion, and Sedimentation of Gold Nanorods S. Seibt et al.The Journal of Physical Chemistry127, 45, 22336-22346 (2023).DOI: 10.1021/acs.jpcc.3c05399
Analysing Sources of Error in Total Internal Reflection Microscopy (TIRM) Experiments and Data Analysis J. A. Rivera-Morán & P. R. LangPolymers 15(21), 4208 (2023).DOI: 10.3390/polym15214208
The effect of morphology and particle–wall interaction on colloidal near-wall dynamics J. A. Rivera-Morán et al.Soft Matter17, 10301-10311 (2021).DOI: 10.1039/D1SM01191J
Thermophoresis of a Colloidal Rod: Contributions of Charge and Grafted Polymers Z. Wang, et al. Langmuir 35, 1000-1007 (2019). DOI:10.1021/acs.langmuir.8b03614