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DY: Fachverband Dynamik und Statistische Physik

DY 53: Posters - Active Matter

DY 53.3: Poster

Donnerstag, 23. März 2017, 17:00–19:30, P1A

The growth and structural properties of microbial colonies in microfluidic devices — •Sebastian Mair — Max-Planck-Institut für Dynamik und Selbstorganisation, Am Faßberg 17, 37077 Göttingen, Deutschland

Microbial organisms are ubiquitous in nature. Escherichia coli bacteria serve as a model organism to study many phenomena pertaining to a large class of organisms. It is among the best understood microbes, yet relatively little is known about the colony growth mechanisms on a single-cell level. In the last decade the availability of microfluidic devices opened new pathways to experimental research. This facilitated the development of realistic simulation-schemes and related theory. We perform simulations of a growing microbial colony, where microbes are represented by mechanically interacting discrete elements, that incorporate the principles of reaction-diffusion systems. We study the microscale-growth, the dynamic properties and the emerging morphology of microbial colonies under the presence of convective flows. We compare our findings with experimental evidence.