(a)
(b)
(c)
Figure 2: (a) Design strategy and mode of use for the endoscopic device and of the theranostic nanoparticles employed. (b) Schematic representation of the different theranostic approaches enabled by the endoscope/nanoparticle platform (from left to right): photodynamic therapy, photothermal therapy, chemotherapy, and synergetic effect of multimodal phototherapies under pulsed laser irradiation (c) Graphical concept of tumor treatment using the endoscope/nanoparticle platform. Figures from reference [47] reprinted with modifications.