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@ARTICLE{Wu:856729,
      author       = {Wu, Baohu and Siglreitmeier, Maria and Debus, Christian and
                      Schwahn, Dietmar and Cölfen, Helmut and Pipich, Vitaliy},
      title        = {{I}onic {D}ependence of {G}elatin {H}ydrogel {A}rchitecture
                      {E}xplored {U}sing {S}mall and {V}ery {S}mall {A}ngle
                      {N}eutron {S}cattering {T}echnique},
      journal      = {Macromolecular bioscience},
      volume       = {18},
      number       = {6},
      issn         = {1616-5187},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2018-06080},
      pages        = {1800018 -},
      year         = {2018},
      abstract     = {The hierarchical structure of gelatin hydrogels mimics a
                      natural extracellular matrix and provides an optimized
                      microenvironment for the growth of 3D structured tissue
                      analogs. In the presence of metal ions, gelatin hydrogels
                      exhibit various mechanical properties that are correlated
                      with the molecular interactions and the hierarchical
                      structure. The structure and structural response of gelatin
                      hydrogels to variation of gelatin concentration, pH, or
                      addition of metal ions are explored by small and very small
                      angle neutron scattering over broad length scales. The
                      measurements of the hydrogels reveal the existence of a
                      two-level structure of colloid-like large clusters and a 3D
                      cage-like gel network. In the presence of Fe3+ ions the
                      hydrogels show a highly dense and stiff network, while Ca2+
                      ions have an opposite effect. The results provide important
                      structural insight for improvement of the design of gelatin
                      based hydrogels and are therefore suitable for various
                      applications.},
      cin          = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {570},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101 / EXP:(DE-MLZ)KWS3-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29736987},
      UT           = {WOS:000435279400004},
      doi          = {10.1002/mabi.201800018},
      url          = {https://juser.fz-juelich.de/record/856729},
}