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SUMMARY:Shape-tension coupling produces nematic order in an epithelium ver
 tex model - Jan Rozman (University of Oxford)
DTSTART:20230904T103000Z
DTEND:20230904T105000Z
UID:TALK203794@talks.cam.ac.uk
DESCRIPTION:We study the vertex model for epithelial tissue mechanics exte
 nded to include coupling between the cell shapes and tensions in cell-cell
  junctions [1]. This coupling represents an active force which drives the 
 system out of equilibrium and leads to the formation of nematic order inte
 rspersed with prominent\, long-lived +1 defects. The defects in the nemati
 c ordering are coupled to the shape of the cell tiling\, affecting cell ar
 eas and coordinations. This intricate interplay between cell shape\, size\
 , and coordination provides a possible mechanism by which tissues could sp
 ontaneously develop long-range polarity through local mechanical forces wi
 thout resorting to long-range chemical patterning.&nbsp\;\n[1] J. Rozman\,
  R. Sknepnek\, and J. M. Yeomans\, arXiv preprint arXiv:2212.11037 (2022).
LOCATION:Seminar Room 1\, Newton Institute
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