Figure 1.

Simplified schematic of a bioelectronic layout used for drug delivery. (a) Before the drug delivery process, the electrolyte reservoir is partially filled where an initial volume of gas and the drug sits on top of the flexible membrane. (b) The gas formation process deforms the flexible membrane to pump the drug from inside the device through the microchannels and into the target location. The parameters involved in the drug delivery process are labeled through the schematic in their respective locations except the Young modulus, Poisson ratio, and stress-strain relationship of the flexible membrane.