Soft matter physics : Tools and mechanical models for living cellular aggregates

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http://hdl.handle.net/10138/308013

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Khalifat , N , Beaune , G , Nagarajan , U , Winnik , F M & Brochard-Wyart , F 2016 , ' Soft matter physics : Tools and mechanical models for living cellular aggregates ' , Japanese journal of applied physics part 1-Regular papers short notes & review papers , vol. 55 , no. 11 , 1102A8 . https://doi.org/10.7567/JJAP.55.1102A8

Title: Soft matter physics : Tools and mechanical models for living cellular aggregates
Author: Khalifat, Nada; Beaune, Gregory; Nagarajan, Usharani; Winnik, Francoise M.; Brochard-Wyart, Francoise
Contributor: University of Helsinki, Department of Chemistry
Date: 2016-11
Language: eng
Number of pages: 6
Belongs to series: Japanese journal of applied physics part 1-Regular papers short notes & review papers
ISSN: 0021-4922
URI: http://hdl.handle.net/10138/308013
Abstract: Tissues belong to the broad field of active matter, a novel class of non-equilibrium materials composed of many interacting units that individually consume energy and collectively generate motion or mechanical stresses. Active systems span an enormous range of length scales, from individual living cells, to tissues and organisms, to animal groups. We introduce the concept of biological tissues as examples of entangled active matter, where the units (cell) are bound by transient links. We focus here on the mechanical properties (surface tension, elasticity, and viscosity) of cells and tissues derived from measurements performed by the pipette aspiration technique. This approach has been very fruitful in unveiling striking analogies between the physics of inert soft matter (polymer, viscous pastes, and Silly Putty (R)) and the behavior of biological tissues. The results obtained from such analogies suggest important implications in the fields of tissue engineering and development. (C) 2016 The Japan Society of Applied Physics
Subject: OSTEOARTHRITIC HUMAN CARTILAGE
EMBRYONIC-TISSUES
MICROPIPETTE ASPIRATION
VISCOELASTIC PROPERTIES
SPREADING DYNAMICS
SURFACE-TENSION
CELLS
FLOW
CHONDROCYTES
CAPILLARY
114 Physical sciences
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