Re: [DIYbio] Re: Max resistor voltage

On 07/31/2014 11:26 AM, Simon Quellen Field wrote:
> the idea I like best is to draw two lines on paper with a pencil and let a drop of critters soak into the paper. You can make the
> lines quite close together, and graphite isn't toxic. Then cut the paper and drop it into some nutrient broth.
>
> No cleaning electrodes.
> You can control the volume quite easily.
> Nothing dangerous.

Hmm... that idea even upgrades from DIY to a low cost product! How about ink jet printed conductors
with some large lands that spring contacts connect to on your electroporator-with-safety-features?
The paper could come from the clean and pure sources used for old school analytic filter paper.

It could come in sealed sterile packs. Hey Nathan -- want to do some testing of that starting with
hand drawn graphite papers? The extra volume of critters outside the lines may not matter.
For apps where a tiny volume is all you have the paper could be trimmed away just outside the conductive lines
and dip it in a microdrop of bugs to load your bugs into the "zap chamber"

Fantastic lateral thinking Simon!

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