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@ARTICLE{Gener:862611,
      author       = {Gençer, Alican and Van Rie, Jonas and Lombardo, Salvatore
                      and Kang, Kyongok and Thielemans, Wim},
      title        = {{E}ffect of {G}elation on the {C}olloidal {D}eposition of
                      {C}ellulose {N}anocrystal {F}ilms},
      journal      = {Biomacromolecules},
      volume       = {19},
      number       = {8},
      issn         = {1526-4602},
      address      = {Columbus, Ohio},
      publisher    = {American Chemical Soc.},
      reportid     = {FZJ-2019-02880},
      pages        = {3233 - 3243},
      year         = {2018},
      abstract     = {One of the most important aspects in controlling colloidal
                      deposition is manipulating the homogeneity of the deposit by
                      avoiding the coffee-ring effect caused by capillary flow
                      inside the droplet during drying. After our previous work
                      where we achieved homogeneous deposition of cellulose
                      nanocrystals (CNCs) from a colloidal suspension by
                      reinforcing Marangoni flow over the internal capillary flow
                      (Gençer et al. Langmuir 2017, 33 (1), 228–234), we now
                      set out to reduce the importance of capillary flow inside a
                      drying droplet by inducing gelation. In this paper, we
                      discuss the effect of gelation on the deposition pattern and
                      on the self-assembly of CNCs during droplet drying. CNC
                      films were obtained by drop casting CNC suspensions
                      containing NaCl and CaCl2 salts. A mixed methodology using
                      rheological and depolarized dynamic light scattering was
                      applied to understand the colloidal behavior of the CNCs. In
                      addition, analysis of the mixture’s surface tension,
                      viscosity, and yield stress of the suspensions were used to
                      gain deeper insights into the deposition process. Finally,
                      the understanding of the gelation behavior in the drying
                      droplet was used to exert control over the deposit where the
                      coffee-ring deposit can be converted to a dome-shaped
                      deposit.},
      cin          = {ICS-3},
      ddc          = {570},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551)},
      pid          = {G:(DE-HGF)POF3-551},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29953209},
      UT           = {WOS:000441852400008},
      doi          = {10.1021/acs.biomac.8b00493},
      url          = {https://juser.fz-juelich.de/record/862611},
}