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@ARTICLE{Zhang:187474,
      author       = {Zhang, Jing and Lettinga, M.P. and Dhont, Jan K.G. and
                      Stiakakis, Emmanuel},
      title        = {{D}irect {V}isualization of {C}onformation and {D}ense
                      {P}acking of {DNA}-{B}ased {S}oft {C}olloids},
      journal      = {Physical review letters},
      volume       = {113},
      number       = {26},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-01103},
      pages        = {268303},
      year         = {2014},
      abstract     = {Soft colloids—such as polymer-coated particles, star
                      polymers, block-copolymer micelles, microgels—constitute a
                      broad class of materials where microscopic properties such
                      as deformability and penetrability of the particle play a
                      key role in tailoring their macroscopic properties which is
                      of interest in many technological areas. The ability to
                      access these microscopic properties is not yet demonstrated
                      despite its great importance. Here we introduce novel
                      DNA-coated colloids with star-shaped architecture that
                      allows accessing the above local structural information by
                      directly visualizing their intramolecular monomer density
                      profile and arm’s free-end locations with confocal
                      fluorescent microscopy. Compression experiments on a
                      two-dimensional hexagonal lattice formed by these
                      macromolecular assemblies reveal an exceptional resistance
                      to mutual interpenetration of their charged corona at
                      pressures approaching the MPa range. Furthermore, we find
                      that this lattice, in a close packing configuration, is
                      surprisingly tolerant to particle size variation. We
                      anticipate that these stimuli-responsive materials could aid
                      to get deeper insight in a wide range of problems in soft
                      matter, including the study and design of biomimetic
                      lubricated surfaces.},
      cin          = {ICS-3},
      ddc          = {550},
      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:000350218000032},
      doi          = {10.1103/PhysRevLett.113.268303},
      url          = {https://juser.fz-juelich.de/record/187474},
}