Fig. 1: Schematic illustration of the wearable iontophoresis-driven MN delivery system.
From: Iontophoresis-driven microneedle patch for the active transdermal delivery of vaccine macromolecules
a Schematic illustration of the wearable delivery system, which mainly consists of the iontophoresis-driven MN patch and the iontophoresis-driven device. The iontophoresis-driven MN patch is composed of Ag/AgCl electrodes on a flexible PI, solid MNs, hydrogel blocks, and an adhesive impermeable gasket. The iontophoresis-driven device can supply power and output a constant current for iontophoresis-driven vaccine delivery. b The transdermal vaccine delivery strategy of the iontophoresis-driven MN patch is “press and poke, iontophoresis-driven delivery, and immune response”
