Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session P48: Motion and Jamming of Cells
2:30 PM–5:18 PM,
Wednesday, March 7, 2018
LACC
Room: 510
Sponsoring
Units:
GSNP GSOFT DBIO
Chair: Mark Shattuck, City College of New York CUNY
Abstract ID: BAPS.2018.MAR.P48.6
Abstract: P48.00006 : Dense packing of cell monolayers: Jamming of deformable polygons
3:54 PM–4:30 PM
Presenter:
Arman Boromand
(Mechanical Engineering and Material Sciences, Yale University)
Author:
Arman Boromand
(Mechanical Engineering and Material Sciences, Yale University)
embryonic development, and cancerous tumor growth. Most current
computational models of dense cell packings either treat the system as
collections of spherical particles or assume that the system is
confluent, with no extracellular space. We have developed a new model
for dense cell packings in two spatial dimensions, where the cells are
modeled as deformable particles that have a preferred area and
perimeter. We measure the packing fraction, φj at jamming onset
as a function of the asphericity, α, which is the ratio of the
perimeter square to the area of the particle. We find that the jammed
packing fraction increases monotonically with α and that the system
becomes confluent with φj = 1 for α > 1.16. Using surface
Voronoi analysis, we show that this value for α corresponds to the
case when the cells completely fill their Voronoi-tesselated
regions. We also demonstrate that the free area per cell obeys a
k-gamma distribution, which has been found for jammed packings of
non-deformable particles. Finally, we will describe results
from our model concerning the mobility of deformable particles
subjected to applied forces, as well as diffusion of deformable
particles subjected to active forces to discuss the effect of geometry in active jamming of deformable particles.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.P48.6
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2025 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700