Multichannel Systems MEA Manual - Manual (Page 29)

MEA Manual
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4.17 PEDOT-CNT MEAs: 60PedotMEA
60PedotMEA200/30iR-Au
Carbon nanotube stucture of PEDOT electrodes.
60PedotMEAs have - like standard MEAs - 59 electrodes and one reference electrode that are arranged
in an 8 x 8 layout grid with electrode diameters of 30 μm and interelectrode distances of 200 μm.
The flat, round electrodes are made of PEDOT-CNT
carbon nanotube – poly 3,4-ethylene-dioxythiophene.
Contact pads and track material is made of titanium nitride (TiN) covered by a layer of gold (Au).
The insulation material is silicon nitride.
This type of MEA is characterized by very low impedance values of approximately 20 k.They are ideal
for stimulation and have excellent biocompatibility and cell adhesion.
Important: MEAs are not symmetrical! That is, why the writing (for example NMI, LEITER, MEA type) on
the MEA chip should be on the right side viewed from the front, with the sockets of the amplifier in the
back. MEAs with one big internal reference electrode should be placed with reference electrode to the left
side in the amplifier. Otherwise, the MEA layout will not match with the pin layout of the channel map in
MC_Rack.
Using 60PedotMEAs
MEAs with PEDOT-CNT electrodes can be used for a wide variety of applications. They are robust and
heat-stabilized. They can be autoclaved and coated with different procedures for cell and tissue cultures.
Generally, they can be used for acute experiments as well as long-term cultures.