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SUMMARY:Structure and Dynamics of Anisotropic Soft Matter - Rey\, A (McGil
 l University)
DTSTART:20130322T090000Z
DTEND:20130322T095000Z
UID:TALK44075@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:This paper presents theory and modeling of structure and dynam
 ics of three representative anisotropic soft matter materials :(i) confine
 d nematics \; (ii) membranes and surfactant-laden interfaces\, and (iii) f
 iber-filled soft membranes\, highlighting the interactions between geometr
 y\, order parameters\, and material anisotropy. (i)Confined nematics are d
 escribed using nematodynamics in the bulk\, at surfaces and contact lines 
 and used to analyze cholesteric collagen solutions under shear and in film
  casting processes and demonstrate how liquid crystalline polymer models a
 re able to resolve experimentally observed flow-alignment\, banded texture
 s\, and free surface undulations. (ii) Membranes are described using membr
 ano-dynamics\, which extends the Helfrich-Boussinesq-Scriven model by acco
 unting for bending and torsion dissipation\, and is used to establish dire
 ct connections between membrane shape and rheology. Lastly we describe (ii
 i) fiber-filled membranes using the integration of nemato-dynamics and mem
 brano-dynamics and apply the theory to plant cell walls\, where the parane
 matic order of the cellulose semiflexible fibrils is coupled to the soft p
 ectin-based membrane curvature\, as reported experimentally.\n\n
LOCATION:Seminar Room 1\, Newton Institute
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