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@INPROCEEDINGS{Kireev:809749,
      author       = {Kireev, Dmitry and Schnitker, Jan and Seyock, Silke and
                      Maybeck, Vanessa and Wolfrum, Bernhard and Offenhäusser,
                      Andreas},
      title        = {{L}arge array of {GFET}s for extracellular communication
                      with neuronal cells},
      reportid     = {FZJ-2016-02676},
      year         = {2014},
      abstract     = {Graphene has already shown its high ability for biosensing.
                      Solution-gated graphene field effect transistors, which
                      showed very high sensitivity in electrolytes [1], have
                      another biologically important application: recording
                      neuronal activity. Such devices exhibit very high
                      signal-to-noise ratio for extracellular measurements [2].
                      The aim of this work is to optimize and scale both
                      fabrication procedure and measurement system. When working
                      with biological samples, there is a need in a large number
                      of devices. High density of the devices is also preferable.
                      Therefore we fabricate the devices on 4’’ wafer,
                      resulting in 50 chips, 11*11mm each. Each chip consequently
                      embodies an array of 32 graphene FETs (see fig.1). The
                      active area of the chip is around 2 mm2 while each GFET’s
                      channel differs between 5 and 20 um with altered
                      configurations. Such devices, when used with the already
                      developed multichannel measurements system make possible
                      simultaneous measurement and stimulation of all 32
                      transistors in a time-scale. This makes possible to measure
                      not just discrete spikes, but even propagation of the action
                      potential through the neuronal network.},
      month         = {Jun},
      date          = {2014-06-23},
      organization  = {Graphene Week 2014, Gothenburg
                       (Sweden), 23 Jun 2014 - 27 Jun 2014},
      subtyp        = {Other},
      cin          = {ICS-8 / PGI-8},
      cid          = {I:(DE-Juel1)ICS-8-20110106 / I:(DE-Juel1)PGI-8-20110106},
      pnm          = {552 - Engineering Cell Function (POF3-552)},
      pid          = {G:(DE-HGF)POF3-552},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/809749},
}