| http://www.w3.org/ns/prov#value | - The inner diameter of electrode 108 preferably matches the diameter of outer plating 214, and thus has values mentioned above. [0057] At least the surfaces of the electrodes of FIGS. 1 and 2 that face the reaction zones 110 and 210 within micro-needles 100 and 200, respectively, are comprised of highly conductive metal, such as palladium, gold, platinum, silver, iridium, carbon, doped indium tin o
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