| http://www.w3.org/ns/prov#value | - In one embodiment (as FIG. 14 shows), the nonporous conductive regions 72 comprise metal, such as gold, platinum, platinum/iridium, among others, deposited upon the expandable-collapsible body 22 by sputtering, vapor deposition, ion beam deposition, electroplating over a deposited seed layer, or a combination of these processes.
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