Re: [DIYbio] multielectrode arrays

On Wed, Mar 6, 2013 at 11:31 AM, Eugen Leitl <eugen@leitl.org> wrote:
> On Wed, Mar 06, 2013 at 12:08:16PM -0600, John Griessen wrote:
>> On 03/06/2013 07:15 AM, Eugen Leitl wrote:
>>> I'm thinking about something likehttp://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.
>>
>> What salts of platinum? I thought it was so noble only nitric/HCl
>> could touch it, so that would eat a jet printer also...
>
> There quite simple approaches like http://144.206.159.178/ft/68/11044/211925.pdf
> I don't see why one couldn't do 10 um or lower traces with that
> and an inkjet method.

So that will get your circuit laid out, but you would then need to
mask off the wires leading to each electrode. Is there an ink-jet
clear-coat? Otherwise I'd say you might be able to get away with
contact lithography and some cheap photoresist.


--
-Nathan

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