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@INPROCEEDINGS{Lettinga:133527,
      author       = {Lettinga, Pavlik},
      title        = {{D}ynamics and colloidal rods at rest and in external
                      fields},
      school       = {Lund},
      reportid     = {FZJ-2013-01961},
      year         = {2012},
      abstract     = {Colloidal rods form the most basic system to study the
                      origin of self-assembled structures. Depending on
                      concentration it can form phases with only orientational
                      ordering and 1-, 2- and 3-D positional ordering. In this
                      talk I will first show what can be learned from the
                      dynamical behavior of individual rods about the nature of
                      the equilibrium self-assembly. This is experimentally
                      achieved by tracking rod-like viruses with video
                      fluorescence microscopy. The viruses ideal model systems
                      since they are very slender, monodisperse and can be made
                      with variable stiffness. Dynamic signatures for the
                      different phase transitions are obtained, leading to a
                      reconsideration of the nature of the transitions. Another
                      interesting aspect of colloidal rods is that they are very
                      susceptible to external fields. In shear flow the torque on
                      the rod will cause alignment, while in confinement rods tend
                      to align with the wall. Both effects can drive or frustrate
                      structure formation. In the second part of the talk, I will
                      give several examples of this interplay of rod dispersions
                      with external fields and show pathways to a microscopic
                      understanding of the observed phenomena.},
      month         = {Feb},
      date          = {2012-02-27},
      organization  = {Seminar at Dept. of Physical
                       Chemistry, Lund (Sweden), 27 Feb 2012 -
                       27 Feb 2012},
      subtyp        = {Invited},
      cin          = {ICS-3},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {451 - Soft Matter Composites (POF2-451)},
      pid          = {G:(DE-HGF)POF2-451},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/133527},
}