Multichannel Systems MPA32I Manual - Manual (Page 15)

FlexMEAs
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FlexMEAs
FlexMEAs are made of flexible polyimide material (Polyimide 2611 foil), perfect for in vivo
and special in vitro applications. Only 12 μm "thick" and weighing less than 1 g, the FlexMEA
biosensor is very thin and lightweight.
FlexMEA36 has 32 titanium nitride (TiN) electrodes plus two
internal reference electrodes and two ground electrodes.
The flexible base is perforated for a better contact with
the surrounding tissue.
The electrodes have a diameter of about 30 μm with
an interelectrode distance of 300 μm.
Contact pads and conducting material is pure gold.
FlexMEA72 has 72 titanium nitride (TiN) electrodes plus
four internal reference electrodes and four ground
electrodes. The flexible base is perforated for a better
contact with the surrounding tissue.
The electrodes have a diameter of about 100 μm with
an interelectrode distance from 625 to 750 μm.
Contact pads and conducting material is pure gold.
Using FlexMEAs
FlexMEAs are usually connected to a headstage preamplifier that is connected to a filter amplifier
or programmable gain amplifier (see also the ME-System product line of Multi Channel Systems
MCS GmbH). FlexMEAs can be via adapter connected to a 32-channel miniature preamplifier
MPA32I from Multi Channel Systems for in vivo experiments. FlexMEAs are stable at a
temperature range from 10 °C to 40 °C.
Warning: Do not autoclave or sterilize FlexMEAs by heat. These MEA types are not heat stable
and will irreversibly damaged if the temperature is too high.
Do not use ultrasonic bath for cleaning!