Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/161246
Title: Hexatic phase in a model of active biological tissues
Authors: Pasupalak, Anshuman
Li, Yan-Wei
Ni, Ran
Ciamarra, Massimo Pica
Keywords: Engineering::Bioengineering
Issue Date: 2020
Source: Pasupalak, A., Li, Y., Ni, R. & Ciamarra, M. P. (2020). Hexatic phase in a model of active biological tissues. Soft Matter, 16(16), 3914-3920. https://dx.doi.org/10.1039/d0sm00109k
Project: MOE2017-T2-1-066 (S)
2019-T1-001-032
Journal: Soft Matter
Abstract: In many biological processes, such as wound healing, cell tissues undergo an epithelial-to-mesenchymal transition, which is a transition from a more rigid to a more fluid state. Here, we investigate the solid/fluid transition of cell tissues within the framework of the self-propelled Voronoi model, which accounts for the deformability of the cells, for their many-body interactions, and for their polarized motility. The transition is controlled by two parameters, respectively accounting for the strength of the self-propelling force of the cells, and for the mechanical rigidity of the cells. We find the melting transition to occur via a continuous solid-hexatic transition followed by a continuous hexatic-liquid transition, as in the Kosterlitz, Thouless, Halperin, Nelson, and Young scenario. This finding indicates that the hexatic phase may have an unexpected biological relevance.
URI: https://hdl.handle.net/10356/161246
ISSN: 1744-683X
DOI: 10.1039/d0sm00109k
Schools: School of Chemical and Biomedical Engineering 
School of Physical and Mathematical Sciences 
Rights: © 2020 The Authors. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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