Re: [DIYbio] Non-Platinum Electrophoresis Electrodes That Don't Degrade

Random idea: perhaps you can attach the wire end in solution to another piece of metal, which will act as a sacrificial anode, thus saving the wire itself.  Then only the sacrificial piece (presumably, cheaper metal) needs to be replaced.  For example, a big chunk of zinc.  Main reason this comes to mind is that I've got a nice chunk of zinc on the outside of my sailboat which sits in salt water (akin to a buffer), exactly for this purpose: the zinc oxidizes instead of the other brass/bronze on my boat similarly exposed to the buffer; this is a problem on boats due to stray currents in the electrical system (basically, making a battery, electron migration).  This idea may not work at all, never seen a reference to it in a publication on electrophoresis.  Magnesium is used as a sacrificial anode but only in fresh water.  Aluminum is an alternative in salt water.


Hmm, here's a patent which suggests using carbon nanotubes.  Apparently nanotubes are the answer to everything right?

  Ref: http://www.google.com/patents/US8329004


On Sunday, May 26, 2013 8:34:11 PM UTC-7, Josiah Zayner wrote:

I can't really find much on chrome plated wire online or a place that sells it. Any ideas?

Graphite rods look like an ok solution but seem complicated to attach and use without breakdown of other metals.
 

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