Macias Sensor's Hardened Gold
The gold PCB electrodes from Macias Sensors are the World's only gold PCB electrodes that work in aqueous environments without the corrosion commonly encountered with other PCB electrodes.
Macias Sensor uses a proprietary metal hardening process which is not available to any other manufacturer.
In the adjacent video we discuss PCBs in order to fabricate arrays of electrodes.
If you intend to use a PCB at a sensor or biosensor, especially in aqueous samples we recommend the electrodes from Macias Sensors, see above.