pH-responsive polymer microcapsules for targeted delivery of biomaterials to the midgut of Drosophila suzukii
Fig 4
Polymerised multiple emulsion template yielding solid P2VP microcapsules.
(a-d) Optical microscopy of microcapsules formed from polymerisation of the oil phase of the multiple emulsion template. (e) SEM analysis of the loaded microcapsules (f) Size measurement using light scattering, average distribution expressed as volume (%) (n = 10), of the microcapsules ranging from 2–100 μm. The smaller peak around 1 μm is a by-product formed of solid polymer particles containing no active species.