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@ARTICLE{Toma:202363,
      author       = {Toma, Koji and Kano, Hiroshi and Offenhäusser, Andreas},
      title        = {{L}abel-{F}ree {M}easurement of {C}ell–{E}lectrode
                      {C}left {G}ap {D}istance with {H}igh {S}patial {R}esolution
                      {S}urface {P}lasmon {M}icroscopy},
      journal      = {ACS nano},
      volume       = {8},
      number       = {12},
      issn         = {1936-086X},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2015-04624},
      pages        = {12612 - 12619},
      year         = {2014},
      abstract     = {Understanding the interface between cells or tissues and
                      artificial materials is of critical importance for a broad
                      range of areas. For example, in neurotechnology, the
                      interfaces between neurons and external devices create a
                      link between technical and the nervous systems by
                      stimulating or recording from neural tissue. Here, a more
                      effective interface is required to enhance the electrical
                      characteristics of neuronal recordings and stimulations. Up
                      to now, the lack of a systematic characterization of
                      cell–electrode interaction turns out to be the major
                      bottleneck. In this work, we employed a recently developed
                      surface plasmon microscope (SPM) to monitor in real-time the
                      cell–metal interface and to measure in situ the gap
                      distance of the cleft with the spatial resolution reaching
                      to the optical diffraction limit. The SPM allowed
                      determination of the distance of human embryonic kidney 293
                      cells cultured on gold surfaces coated with various peptides
                      or proteins without any labeling. This method can
                      dramatically simplify the interaction investigation at
                      metal–living cell interface and should be incorporated
                      into systematic characterization methods.},
      cin          = {ICS-8 / PGI-8},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ICS-8-20110106 / I:(DE-Juel1)PGI-8-20110106},
      pnm          = {523 - Controlling Configuration-Based Phenomena (POF3-523)},
      pid          = {G:(DE-HGF)POF3-523},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000347138000072},
      doi          = {10.1021/nn505521e},
      url          = {https://juser.fz-juelich.de/record/202363},
}