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DPG

Regensburg 2019 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 53: Poster Quantum Systems

DY 53.11: Poster

Donnerstag, 4. April 2019, 15:00–18:00, Poster B2

Modelling cells as pressurized elastic shells — •Behzad Golshaei1, Renata Garces1, Samaneh Rezvani1, Octavio E. Albarran1, and Christoph F. Schmidt1,21Drittes Physikalisches Institut - Biophysik, Fakultät für Physik, Georg-August-Universität Göttingen, 37077 Göttingen — 2Department of Physics, Duke University, Durham, NC 27708, USA

Animal cells and bacteria are enveloped and sealed by lipid membranes and mechanically protected by cortical polymer networks. Cells typically maintain a small (eukaryotic cells) or large (bacteria) positive osmotic pressure against their environment. Volume and shape regulation also impact the mechanical properties of cells. The mechanical properties of cells can be probed by exerting external force and measuring cell response. To better understand micromechanical optical trapping experiments with suspended rounded cells, and AFM experiments on bacteria, we employed finite element simulations and modelled cells as pressurized elastic shells.

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