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@ARTICLE{Kang:132181,
      author       = {Kang, Kyongok and Dhont, Jan K.G.},
      title        = {{S}tructural arrest and texture dynamics in suspensions of
                      charged colloidal rods},
      journal      = {Soft matter},
      volume       = {9},
      number       = {17},
      issn         = {1744-6848},
      address      = {Cambridge},
      publisher    = {Royal Society of Chemistry (RSC)},
      reportid     = {FZJ-2013-01413},
      pages        = {4401-4411},
      year         = {2013},
      abstract     = {There is an abundance of experiments and theories on the
                      glass transition of colloidal systems consisting of
                      spherical particles. Much less is known about possible glass
                      transitions in suspensions of rod-like colloids. In this
                      study we present observations of a glass transition in
                      suspensions of very long and thin rod-like, highly charged
                      colloids. We use as a model system fd-virus particles(a DNA
                      strand covered with coat proteins) at low ionic strength,
                      where thick electric double layers are present. Structural
                      arrest as a result of particle-caging is observed by means
                      of dynamic light scattering. The glass-transition
                      concentration is found to be far above the isotropic-nematic
                      coexistence region. The morphology of the system thus
                      consists of nematic domains with different orientations.
                      Below the glass-transition concentration the initial
                      morphology with large shear-aligned domains breaks up into
                      smaller domains, and equilibrates after typically 50-100
                      hours. We quantify the dynamics of the transitional and the
                      equilibrated texture by means of image time-correlation. A
                      sharp increase of relaxation times of image time-correlation
                      functions is found at the glass-transition concentration.
                      The texture dynamics thus freezes at the same concentration
                      where structural arrest occurs. We also observe a flow
                      instability, which sets in after very long waiting times
                      (typically 200-300 hours), depending on the rod
                      concentration, which instability affects the texture
                      morphology.},
      cin          = {ICS-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {451 - Soft Matter Composites (POF2-451)},
      pid          = {G:(DE-HGF)POF2-451},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000316967300005},
      doi          = {10.1039/c3sm27754b},
      url          = {https://juser.fz-juelich.de/record/132181},
}