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SUMMARY:Mechanics of soft membranes and interfaces: anisotropy\; nonlinear
 ity\; buckling - Dr Pietro Cicuta\, Cavendish Laboratory
DTSTART:20121109T140000Z
DTEND:20121109T150000Z
UID:TALK39479@talks.cam.ac.uk
CONTACT:Ms Helen Gardner
DESCRIPTION:The paradigm and seminal developments in soft membrane mechani
 cs date back to the 1970s\, with Helfrich's description of the energy requ
 ired to deform a bilayer. The shape of liquid interfaces has an even longe
 r history\, and is governed by the Young-Laplace equation.  All these trea
 tments assume linearity\, and an absence of shear stresses.  This holds we
 ll for fluid systems. However many systems of interest are not fluid\, and
  have elasticity. In recent years these systems have come under focus. Thi
 s talk will explore two systems: (a) the membrane of red blood cells\; thi
 s is possibly the simplest cell type\, and yet the mechanics and dynamical
  response of this membrane is highly non-trivial\;  (b) surface monolayers
  of the protein hydrophobin\; this is a protein of great interest in the f
 ood industry as a foam stabiliser\; it forms very elastic surface films\, 
 which buckle under compression.
LOCATION:Oatley Seminar Room\, Department of Engineering
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