Dresden 2017 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 53: Posters - Active Matter

DY 53.1: Poster

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

Modelling the physical origin of bacterial biofilm morphotypes — •Horst-Holger Boltz and Stefan Klumpp — Institut für nichtlineare Dynamik, Fakultät Physik, Georg-August-Universität Göttingen, Göttingen, Deutschland

Microbial biofilms have been an important subject of study in the recent years due to their biological, medical and technological relevance. Biofilms are large multicellular structures of mi- croorganisms adherent to a substrate. The formation of these structures is usually accompanied by the production of an extracellular matrix formed by so-called extra-cellular polymeric substances (EPS). Thus, an elastic film is created that is growing due to the ongoing cell growth and division as well as the continued production of EPS. This growth leads to residual and dynamic stresses that are relieved by a non-planar pattern-formation (wrinkling). We present a reductionist model highlighting the physical origin of the different morphotypes observed.