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@ARTICLE{Peters:838939,
      author       = {Peters, J. and Marion, J. and Becher, F. J. and Trapp, M.
                      and Gutberlet, T. and Bicout, D. J. and Heimburg, T.},
      title        = {{T}hermodynamics of lipid multi-lamellar vesicles in
                      presence of sterols at high hydrostatic pressure},
      journal      = {Scientific reports},
      volume       = {7},
      number       = {1},
      issn         = {2045-2322},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2017-07442},
      pages        = {15339},
      year         = {2017},
      abstract     = {We compared the effect of cholesterol at different
                      concentration on the phase behaviour of
                      DMPC(1,2-dimyristoyl-sn-glycero-3-phosphocholine)
                      multilamellar vesicles. We used pressure
                      perturbationdifferential scanning calorimetry (PPC) that
                      studies a system on the whole by giving access to
                      relevantthermodynamic quantities, and elastic incoherent
                      neutron scattering (EINS) that probes local motionsof a
                      system at the atomic level by allowing extraction of
                      dynamical parameters. PPC revealed thatthe volume expansion
                      coefficient of DMPC and DMPC/Cholesterol samples with 13 and
                      25 $mol\%cholesterol$ is a linear function of the heat
                      capacity measured by differential scanning
                      calorimetry.Neutron backscattering spectroscopy showed that
                      the mean square displacements of H atoms doexhibit an
                      increase with temperature and a decrease under increasing
                      pressure. Cholesterol added atconcentrations of 25 and 50
                      $mol\%$ led to suppression of the main phase transition.
                      Taking advantage ofthese results, the present study aims (i)
                      to show that calorimetry and EINS using the Bicout and
                      Zaccaimodel equally permit to get access to thermodynamic
                      quantities characterizing pure DMPC and DMPC/cholesterol
                      mixtures, thus directly confirming the theoretical method,
                      and (ii) to validate our approachas function of temperature
                      and of pressure, as both are equally important and
                      complementarythermodynamic variables.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1 /
                      JCNS-2},
      ddc          = {000},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-2-20110106},
      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)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29127413},
      UT           = {WOS:000414917800079},
      doi          = {10.1038/s41598-017-15582-4},
      url          = {https://juser.fz-juelich.de/record/838939},
}