Active flows and deformable surfaces in development
SEMINARS IN CELL & DEVELOPMENTAL BIOLOGY(2021)
摘要
We review progress in active hydrodynamic descriptions of flowing media on curved and deformable manifolds: the state-of-the-art in continuum descriptions of single-layers of epithelial and/or other tissues during devel-opment. First, after a brief overview of activity, flows and hydrodynamic descriptions, we highlight the generic challenge of identifying the dependence on dynamical variables of so-called active kinetic coefficients- active counterparts to dissipative Onsager coefficients. We go on to describe some of the subtleties concerning how curvature and active flows interact, and the issues that arise when surfaces are deformable. We finish with a broad discussion around the utility of such theories in developmental biology. This includes limitations to analytical techniques, challenges associated with numerical integration, fitting-to-data and inference, and po-tential tools for the future, such as discrete differential geometry.
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关键词
Active Hydrodynamics, Differential Geometry, Morphogenesis, Epithelial Sheets
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