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@ARTICLE{Hondrich:872666,
      author       = {Hondrich, Timm J. J. and Lenyk, Bohdan and Shokoohimehr,
                      Pegah and Kireev, Dmitry and Maybeck, Vanessa and Mayer,
                      Dirk and Offenhäusser, Andreas},
      title        = {{MEA} {R}ecordings and {C}ell–{S}ubstrate
                      {I}nvestigations with {P}lasmonic and {T}ransparent,
                      {T}unable {H}oley {G}old},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {11},
      number       = {50},
      issn         = {1944-8252},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2020-00157},
      pages        = {46451 - 46461},
      year         = {2019},
      abstract     = {Microelectrode arrays are widely used in different fields
                      such as neurobiology or biomedicine to read out electrical
                      signals from cells or biomolecules. One way to improve
                      microelectrode applications is the development of novel
                      electrode materials with enhanced or additional
                      functionality. In this study, we fabricated macroelectrodes
                      and microelectrode arrays containing gold penetrated by
                      nanohole arrays as a conductive layer. We used this holey
                      gold to optically excite surface plasmon polaritons, which
                      lead to a strong increase in transparency, an effect that is
                      further enhanced by the plasmon’s interaction with cell
                      culture medium. By varying the nanohole diameter in
                      finite-difference time domain simulations, we demonstrate
                      that the transmission can be increased to above $70\%$ with
                      its peak at a wavelength depending on the holey gold’s
                      lattice constant. Further, we demonstrate that the novel
                      transparent microelectrode arrays are as suitable for
                      recording cellular electrical activity as standard devices.
                      Moreover, we prove using spectral measurements and
                      finite-difference time domain simulations that plasmonically
                      induced transmission peaks of holey gold red-shift upon
                      sensing medium or cells in close vicinity (<30 nm) to the
                      substrate. Thus, we establish plasmonic and transparent
                      holey gold as a tunable material suitable for cellular
                      electrical recordings and biosensing applications.},
      cin          = {ICS-8},
      ddc          = {600},
      cid          = {I:(DE-Juel1)ICS-8-20110106},
      pnm          = {552 - Engineering Cell Function (POF3-552)},
      pid          = {G:(DE-HGF)POF3-552},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31752486},
      UT           = {WOS:000503918300006},
      doi          = {10.1021/acsami.9b14948},
      url          = {https://juser.fz-juelich.de/record/872666},
}