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@ARTICLE{Scotti:851481,
      author       = {Scotti, A. and Brugnoni, M. and Rudov, A. A. and Houston,
                      Judith and Potemkin, I. I. and Richtering, W.},
      title        = {{H}ollow microgels squeezed in overcrowded environments},
      journal      = {The journal of chemical physics},
      volume       = {148},
      number       = {17},
      issn         = {1089-7690},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2018-05117},
      pages        = {174903 -},
      year         = {2018},
      abstract     = {We study how a cavity changes the response of hollow
                      microgels with respect to regular ones in overcrowded
                      environments. The structural changes of hollow
                      poly(N-isopropylacrylamide) microgels embedded within a
                      matrix of regular ones are probed by small-angle neutron
                      scattering with contrast variation. The form factors of the
                      microgels at increasing compressions are directly measured.
                      The decrease of the cavity size with increasing
                      concentration shows that the hollow microgels have an
                      alternative way with respect to regular cross-linked ones to
                      respond to the squeezing due to their neighbors. The
                      structural changes under compression are supported by the
                      radial density profiles obtained with computer simulations.
                      The presence of the cavity offers to the polymer network the
                      possibility to expand toward the center of the microgels in
                      response to the overcrowded environment. Furthermore, upon
                      increasing compression, a two step transition occurs: First
                      the microgels are compressed but the internal structure is
                      unchanged; then, further compression causes the fuzzy shell
                      to collapse completely and reduce the size of the cavity.
                      Computer simulations also allow studying higher compression
                      degrees than in the experiments leading to the microgel’s
                      faceting},
      cin          = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1 / JARA-HPC},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / $I:(DE-82)080012_20140620$},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623) / Amphoteric Microgels
                      for Uptake and Release of Polyelectrolytes
                      $(jhpc41_20160501)$},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4 /
                      $G:(DE-Juel1)jhpc41_20160501$},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29739205},
      UT           = {WOS:000431685500026},
      doi          = {10.1063/1.5026100},
      url          = {https://juser.fz-juelich.de/record/851481},
}