Fig. 1
From: Polydopamine-coated double emulsion capsules for on-demand drug release with reduced passive leakage
Fabrication of PDA-coated DECs for on-demand drug release. (a) Schematic illustration of the fabrication and rupture processes for PDA-coated DECs, including microfluidic DE generation, solvent evaporation, one-pot PDA coating, and DEC rupture through laser irradiation. (b) DEs generated using a microfluidic system. (c) A DEC formed through the solvent evaporation process. (d) SEM image of an intact DEC, showing its surface morphology. (e) Cross-sectional SEM image of a DEC, revealing the core–shell structure. (f) PDA-coated DEC created by the one-pot PDA coating method. (g) On-demand drug release through NIR laser irradiation.
