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@INPROCEEDINGS{Lang:902851,
      author       = {Lang, Peter R. and Liu, Yi and Rivera Moran, Jose
                      Alejandro},
      title        = {{O}n the effects of morphology and particle wall
                      interaction on near wall dynamics},
      reportid     = {FZJ-2021-04608},
      year         = {2021},
      abstract     = {We investigated the near-wall Brownian dynamics of
                      different types of colloidal particles with a typical size
                      in the 100 nm range using evanescent wave dynamic light
                      scattering (EWDLS). In detail we studied dilute suspensions
                      of silica spheres and shells with a smooth surface and
                      silica particles with controlled surface roughness. While
                      the near wall dynamics of the particle with smooth surface
                      differ only slightly from the theoretical prediction for
                      hard spheres colloids, the rough particles diffuse
                      significantly slower. We analysed the experimental data by
                      comparison with model calculations and suggest that the
                      deviating dynamics of the rough particles are not due to
                      increased hydrodynamic interaction with the wall. Rather,
                      the particle roughness significantly changes their DLVO
                      interaction with the wall, which in turn effects their
                      diffusion.},
      month         = {Nov},
      date          = {2021-11-24},
      organization  = {EUSMI Final Meeting, online (Germany),
                       24 Nov 2021 - 24 Nov 2021},
      subtyp        = {Invited},
      cin          = {IBI-4},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {5244 - Information Processing in Neuronal Networks
                      (POF4-524) / EUSMI - European infrastructure for
                      spectroscopy, scattering and imaging of soft matter
                      (731019)},
      pid          = {G:(DE-HGF)POF4-5244 / G:(EU-Grant)731019},
      typ          = {PUB:(DE-HGF)31},
      url          = {https://juser.fz-juelich.de/record/902851},
}