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@ARTICLE{Kang:890789,
      author       = {Kang, Kyongok and Eremin, Alexey},
      title        = {{S}olvent-dependent morphology and anisotropic microscopic
                      dynamics of cellulose nanocrystals under electric fields},
      journal      = {Physical review / E},
      volume       = {103},
      number       = {3},
      issn         = {2470-0045},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2021-01197},
      pages        = {032606},
      year         = {2021},
      abstract     = {Cellulose nanocrystals (CNCs) are interesting for the
                      construction of biomaterials for energy delivery and
                      packaging purposes. The corresponding processing of CNCs can
                      be optimized through the variation of inter-cellulose
                      interactions by employing different types of solvents, and
                      thereby varying the degree of cellulose hydrogen bonding.
                      The aim of this work is (i) to show how different types of
                      solvents affect the self-assembled morphology of CNCs, (ii)
                      to study the microscopic dynamics and averaged orientations
                      on the CNCs in aqueous suspensions, including the effect of
                      externally imposed electric fields, and (iii) to explore the
                      non-linear optical response of CNCs. The homogeneity of
                      self-assembled chiral-nematic phase depends on both the
                      polarity of the solvent and the CNC concentration. The
                      variation of the chiral-nematic pitch length with
                      concentration, as determined from real-space and Fourier
                      images, is found to be strongly solvent dependent. The
                      anisotropic microdynamics of CNCs suspension exhibits two
                      modes, related to diffusion parallel and perpendicular to
                      the (chiral) nematic director. We have found also the
                      coupling between translational and orientational motion, due
                      to existing correlation length of twisted nematic
                      elasticity. Preliminary second-harmonic generation
                      experiments are performed, which reveal that relatively high
                      field strengths are required to reorient chiral-nematic
                      domains of CNCs.},
      cin          = {IBI-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {524 - Molecular and Cellular Information Processing
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-524},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33862807},
      UT           = {WOS:000663143300003},
      doi          = {10.1103/PhysRevE.103.032606},
      url          = {https://juser.fz-juelich.de/record/890789},
}