Figure 3

In vivo operation of a device in a porcine model and its in vitro dissolution. (a) Thermal maps (scale bar: 1 cm) of a device implanted in the subdermal region. Inset (scale bar: 1 cm) shows an optical image during the implantation. (b) Fluorescent optical image (scale bar: 300 μm) of the tissue 24 h after implantation (left) and after heating at 43 °C for 3 h (right). (c) Thermal maps (scale bar: 5 mm) and corresponding optical images (insets, scale bar: 1 cm) of dissolution of a device immersed in phosphate-buffered solution (PBS, pH 7.4 at 37 °C). Temperature scale bars, °C.