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@ARTICLE{Mandal:474371,
      author       = {Mandal, Priya and Giri, Rajendra Prasad and Murphy, Bridget
                      and Ghosh, Sajal Kumar},
      title        = {{S}elf-{A}ssembly of {G}raphene {O}xide {N}anoflakes in a
                      {L}ipid {M}onolayer at the {A}ir–{W}ater {I}nterface},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {13},
      number       = {48},
      issn         = {1944-8244},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {PUBDB-2022-00729},
      pages        = {57023 - 57035},
      year         = {2021},
      abstract     = {The graphene family, especially graphene oxide (GO), has
                      captured increasing prospects in the biomedical field due to
                      its excellent physicochemical properties. Understanding the
                      health and environmental impact of GO is of great importance
                      for guiding future applications. Although their interactions
                      with living organisms are omnipresent, the exact molecular
                      mechanism is yet to be established. The cellular membrane is
                      the first barrier for a foreign molecule to interact before
                      entering into the cell. In the present study, a model system
                      consisting of a lipid monolayer at the air–water interface
                      represents one of the leaflets of this membrane. Surface
                      pressure–area isotherms and advanced synchrotron X-ray
                      scattering techniques have been employed to comprehend the
                      interaction by varying the electrostatics of the membrane.
                      The results depict a strong GO interaction with positively
                      charged phospholipids, weak interaction with zwitterionic
                      lipids, and interestingly negligible interaction with
                      negatively charged lipids. GO flakes induce significant
                      changes in the out-of-plane organization of a positively
                      charged lipid monolayer with a minor influence on in-plane
                      assembly of lipid chains. This interaction is
                      packing-specific, and the influence of GO is much stronger
                      at lower surface pressure. Even though for zwitterionic
                      phospholipids, the GO flakes may partly insert into the
                      lipid chains, the X-ray scattering results indicate that the
                      flakes preferentially lie horizontally underneath the
                      positively charged lipid monolayer. This in-depth structural
                      description may pave new perspectives for the scientific
                      community for the development of GO-based biosensors and
                      biomedical materials.},
      cin          = {DOOR ; HAS-User / UKiel},
      ddc          = {600},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)UKiel-20120814},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3)},
      pid          = {G:(DE-HGF)POF4-6G3},
      experiment   = {EXP:(DE-H253)P-P08-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:34817153},
      UT           = {WOS:000752970600023},
      doi          = {10.1021/acsami.1c19004},
      url          = {https://bib-pubdb1.desy.de/record/474371},
}