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@ARTICLE{Grachev:1024591,
      author       = {Grachev, Vladimir and Deschaume, Olivier and Lang, Peter R.
                      and Lettinga, M.P. and Bartic, Carmen and Thielemans, Wim},
      title        = {{D}imensions of {C}ellulose {N}anocrystals from {C}otton
                      and {B}acterial {C}ellulose: {C}omparison of {M}icroscopy
                      and {S}cattering {T}echniques},
      journal      = {Nanomaterials},
      volume       = {14},
      number       = {5},
      issn         = {2079-4991},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2024-02265},
      pages        = {455 -},
      year         = {2024},
      abstract     = {Different microscopy and scattering methods used in the
                      literature to determine the dimensions of cellulose
                      nanocrystals derived from cotton and bacterial cellulose
                      were compared to investigate potential bias and
                      discrepancies. Atomic force microscopy (AFM), small-angle
                      X-ray scattering (SAXS), depolarized dynamic light
                      scattering (DDLS), and static light scattering (SLS) were
                      compared. The lengths, widths, and heights of the particles
                      and their respective distributions were determined by AFM.
                      In agreement with previous work, the CNCs were found to have
                      a ribbon-like shape, regardless of the source of cellulose
                      or the surface functional groups. Tip broadening and
                      agglomeration of the particles during deposition cause
                      AFM-derived lateral dimensions to be systematically larger
                      those obtained from SAXS measurements. The radius of
                      gyration determined by SLS showed a good correlation with
                      the dimensions obtained by AFM. The hydrodynamic lateral
                      dimensions determined by DDLS were found to have the same
                      magnitude as either the width or height obtained from the
                      other techniques; however, the precision of DDLS was limited
                      due to the mismatch between the cylindrical model and the
                      actual shape of the CNCs, and to constraints in the fitting
                      procedure. Therefore, the combination of AFM and SAXS, or
                      microscopy and small-angle scattering, is recommended for
                      the most accurate determination of CNC dimensions.},
      cin          = {IBI-4},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {5243 - Information Processing in Distributed Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5243},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {38470785},
      UT           = {WOS:001183051800001},
      doi          = {10.3390/nano14050455},
      url          = {https://juser.fz-juelich.de/record/1024591},
}