MED Probe (MEA)

MED64 Probes

Microelectrode array (MEA) with the industry’s lowest-impedance electrodes

The MED Probe has multiple microelectrodes embedded in the center of a transparent glass plate. The surrounding glass (or plastic) cylinder makes the MED Probe a self-contained recording chamber.

The MED Probe features the industry’s lowest-impedance electrodes (10 kΩ at 1 kHz for 50 μm electrodes). It provides excellent signal-to-noise ratio and capabilities of stimulation.


Glass substrate: 50 x 50 x 0.7mm
Glass cylindrical chamber: ID=22, OD=25mm
Conducting layer: Indium tin oxide (ITO) ( 0.15µm)
Insulation layer: Acrylate resin (1.5µm)
Recording / Stimulating electrodes
Material ITO + Platinum Black
Impedance < 22kΩ (Typical:10Ω) for 50µm electrodes
< 40kΩ (Typical : 30Ω) for 20µm electrodes
(1kHz, 50mV applied sinusoidal wave)
Reference electrodes
Material ITO + Platinum Black
Size 200 x 200µm
ø 100µm x 4
(MED-P2H07#, MED-P500##,
MED-P5D###, MED-P5F###)
MED64 Probe Technology
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