A drug-delivery tool and method for delivering a diagnostic or therapeutic agent to a target site within a selected body tissue, such as the myocardium of the heart, is disclosed. Various embodiments provide interchangeability of fuses and circuit breakers within the same power distribution bus configuration. A control fluid flows through the actuation aperture in response to an electric field applied via a charge distribution near an actuation aperture layer. The multiple coupling ends of the tubular socket member are configured to allow releasable configuration, reconfiguration and expansion of the multiple tubular stem members along a X axis, a Y axis and a Z axis and in a X plane, a Y plane and a Z plane. In particular, the present invention provides pliable viscoelastic thin-films configured to form strong water-resistant adhesive bonds to various surface types. Simultaneously, generation of noise depending on potential distribution and variation of stray capacitance around a resistor is suppressed.