Generic growth instabilities in one-layered tissue sheets

Details Generic growth instabilities in one-layered tissue sheets Generic growth instabilities in one-layered tissue sheets

1999-07-14

arxiv.org/abs/cond-mat/9907208v2

Physics

Condensed Matter

Statistical Mechanics

9 pages, 3 figures, minor modifications, added references

Scientific paper

Growth and folding in one-layered model tissue sheets are studied in a stochastic, lattice-free single cell model which considers the discrete cellular structure of the tissue, and a coarse grained analytical approach. The polarity of the tissue sheet is considered by a bending term. Cell division gives rise to a locally increasing metric. An exponential and a power-law growth regime are identified. In both regimes folding occurs as soon as the bending contribution becomes too small to compensate the destabilizing effect of the cell proliferation. The potential biological relevance is discussed.

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