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SUMMARY:Biological Fibrous Networks - Dr Alexandre J. Kabla\, Department o
 f Engineering\, University of Cambridge
DTSTART:20071102T111500Z
DTEND:20071102T121500Z
UID:TALK9078@talks.cam.ac.uk
CONTACT:7110
DESCRIPTION:The mechanical properties of living tissues are largely contro
 lled by networks of fibres\, inside the cells (cytoskeleton) as well as in
  the extra-cellular matrix (mostly collagen based). In this talk\, I will 
 illustrate the behaviour of these materials using two experimental systems
 . The first one is a model system\, made of large macroscopic fibres entan
 gled to form of light felt. It provides a convenient material to probe the
  mechanical behaviour of random networks. The second study is performed on
  in vitro collagen gels. Using either living cells or external mechanical 
 components\, we show that a local stretch induces both a strong fibre alig
 nment and a large increase of the fibre density: this response is found to
  be a non-linear elastic effect. \n\n
LOCATION:Gordon Lab Seminar Room\, Austin Building\, Dept. of Materials Sc
 ience &amp\; Metallurgy
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