Multichannel Systems MPA32I Manual - Manual (Page 16)

32-Channel Miniature Preamplifier Manual
10
5.1 EcoFlexMEAs
EcoFlexMEAs are made of flexible polyimide material (Kapton), perfect for in vivo and special in
vitro applications. Only 50 μm "thick" and weighing less than 10 g, the EcoFlexMEA biosensor
is thin and lightweight.
EcoFlexMEA36 has 32 gold electrodes plus two internal reference electrodes and two ground
electrodes. The flexible base is perforated for a better contact with the surrounding tissue. The
gold electrodes have a diameter of about 50 μm with an interelectrode distance of 300 μm and
an impedance of approximately 50 kOhm. Contact pads and conducting material is pure gold.
EcoFlexMEA24 has 24 gold electrodes plus two internal reference electrodes and two ground
electrodes. The flexible base is perforated for a better contact with the surrounding tissue. The
gold electrodes have a diameter of about 80 μm with an interelectrode distance of 300 μm and
an impedance of approximately 50 kOhm. Contact pads and conducting material is pure gold.
EcoFlexMEAs are usually connected to a headstage preamplifier MPA31I that is connected to
a filter amplifier or programmable gain amplifier (see also the ME-System product line of Multi
Channel Systems MCS GmbH). EcoFlexMEAs can be directly connected to a 32-channel miniature
preamplifier from Multi Channel Systems for in vivo experiments. EcoFlexMEAs are stable at a
temperature range from 10 °C to 125 °C and can be autoclaved.