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000809749 1001_ $$0P:(DE-Juel1)159559$$aKireev, Dmitry$$b0
000809749 1112_ $$aGraphene Week 2014$$cGothenburg$$d2014-06-23 - 2014-06-27$$wSweden
000809749 245__ $$aLarge array of GFETs for extracellular communication with neuronal cells
000809749 260__ $$c2014
000809749 3367_ $$033$$2EndNote$$aConference Paper
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000809749 520__ $$aGraphene has already shown its high ability for biosensing. Solution-gated graphene field effect transistors, which showed very high sensitivity in electrolytes [1], have another biologically important application: recording neuronal activity. Such devices exhibit very high signal-to-noise ratio for extracellular measurements [2].  The aim of this work is to optimize and scale both fabrication procedure and measurement system. When working with biological samples, there is a need in a large number of devices. High density of the devices is also preferable. Therefore we fabricate the devices on 4’’ wafer, resulting in 50 chips, 11*11mm each. Each chip consequently embodies an array of 32 graphene FETs (see fig.1). The active area of the chip is around 2 mm2 while each GFET’s channel differs between 5 and 20 um with altered configurations. Such devices, when used with the already developed multichannel measurements system make possible simultaneous measurement and stimulation of all 32 transistors in a time-scale. This makes possible to measure not just discrete spikes, but even propagation of the action potential through the neuronal network.
000809749 536__ $$0G:(DE-HGF)POF3-552$$a552 - Engineering Cell Function (POF3-552)$$cPOF3-552$$fPOF III$$x0
000809749 7001_ $$0P:(DE-Juel1)140152$$aSchnitker, Jan$$b1
000809749 7001_ $$0P:(DE-Juel1)161234$$aSeyock, Silke$$b2
000809749 7001_ $$0P:(DE-Juel1)128705$$aMaybeck, Vanessa$$b3
000809749 7001_ $$0P:(DE-Juel1)128745$$aWolfrum, Bernhard$$b4
000809749 7001_ $$0P:(DE-Juel1)128713$$aOffenhäusser, Andreas$$b5$$eCorresponding author
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000809749 9141_ $$y2016
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