Regensburg 2016 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 31: Poster - Pattern Formation

DY 31.6: Poster

Tuesday, March 8, 2016, 18:15–21:00, Poster C

Modelling growth-induced wrinkling of elastic biofilms — •Horst-Holger Boltz and Stefan Klumpp — Faculty of Physics, Institute for Nonlinear Dynamics, Georg-August-Universität Göttingen, 37077 Göttingen, Germany

Microbial biofilms have been an important subject of study in the recent years due to their biological, medical and technolog- ical relevance. Biofilms are large multicellular structures of microorganisms 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 study the mechanics of this morphoelastic problem.