Figure 4

(a) Heating curve of 10 wt.% nanoparticles in eicosane in air and (b) immersed in FASSIF buffer, mimicking conditions in the gut. The capsule (solid line) shows similar heating characteristics to (a). The temperature of the surrounding FASSIF buffer (dashed line) also increased due to heat transfer from the melted capsule coating and the induction coil.