[DIYbio] multielectrode arrays

Anyone here working with DIY MAEs? http://en.wikipedia.org/wiki/Multielectrode_array

I'm looking into recording a few channels from
http://upload.wikimedia.org/wikipedia/commons/5/58/Lymnaea_stagnalis_central_ring_ganglia.jpg
(scale bar is 1 mm) but can't afford used or refurbished MAEs.

I'm thinking about something like http://www.piclist.com/techref/pcb/direct-inkjet-metal-traces.htm
on a microscope slide, based on silver or platinum salts,
then baking and build a polymer ring wall you can put
a cap on.

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